Yeah, the battery is a lot weaker and is a definite minus, that and the buffer depth. I haven't missed the 2nd slot as I seem to have trouble filling the 64gb in the first and only used it in the K3 as an overflow.
I've got 9 batteries (!!!)... collected over the years of having the Kr and K30. 2 of the batteries are dead now (expro), 2 expro are still going but are probably the weakest of my batteries (not sure when they were bought but well before owning the KP). The hama one from the KR is still good but was always a lower capacity than the original. I have 2 Pentax, they are the best and then a couple of ansmann, which are nearly as good as the Pentax.
These days I also have a usb charger for the batteries and while travelling without frequent access to electrics (Camping) I use a powerbank to charge them. I had problems while on a 3 week camping holiday the first year I had the KP and ran out of batteries.... I tend to get around a days shooting on the good batteries (Pentax and Ansmann) unless I use liveview a lot. My logic is that 2 KP batteries are about the weight and size of one K3 battery so carrying a couple of spares is not much more than carrying a K3 spare (which I always did).
The most annoying thing about the KP is there is no battery warning unless you are in live view or have the status screen always on the rear screen which of course takes battery power to run.... I often get caught out when the battery just dies. However even with this I still preferred it to the K3. AF being so much better and the 3rd wheel helps with ease of use.
I went for black, but I have no preference. Both look pretty good to me.

I had the K3 when I bought the KP a couple of years ago. I never used the K3 again and then ended up selling it.... the KP was that good for my use.

I've only got the FA* (bought new in the mid 90's) and haven't handled the F*. These days they both seem so rare I'd take either based on reputation. If a tripod mount is important I use the Canon 70-200 F4 tripod mount on my FA*, it's an ok fit however I don't use it often, mainly for testing and the occasional moon shot. The lens is so light and easily handheld I don't miss the tripod mount.
Mine's been very reliable so far and has gotten faster and more accurate with every new iteration of Pentax camera. Until a few years ago it was my go to wildlife lens. My far newer DA* 300 has already had an sdm fault and needed repaired.

Hi Dan, I've added some olympus m43 bodies and lenses and was waiting for the olympus 300 F4 to be released and then.... it was heavier than the DA*300 F4, a lot more expensive and a bit bigger, all for a camera that has a smaller sensor than the APS-C pentax. It seems that this was a choice olympus took, not a necessity. If Pentax can make a DA*300 F4 that covers full frame, then olympus should be able to match that if not improve. Then the EM1 mk ii is more expensive than the Pentax APS-C cameras, again a choice made by olympus. If mirrorless manufacturer keep appealing to the large and expensive lens crowd then I'll stay a happy Pentax APS-C user with my existing lenses on the KP or next flagship. However Pentax also seems to have gone this way with newer lenses and the K1, so I don't hold out much hope for people like me who are looking for improved performance in smaller packages.
And of course it comes back to the fact that Pentax needs to grow it's new users, because as much as I'd like to be around for a very long time I don't think I'll be here forever....

It read like a light hearted interview, lots of laughter. However I wasn't expecting them to say that they expect some (I guess a significant number) people are going to return to DSLR's from mirrorless . However they know their business and customers better than I do, so good luck to them.
There are plenty of mirrorless systems around for people to use and I'm not sure what Pentax could add to this market apart from being able to use AF with our current Pentax lenses,
Personally I like mirrorless and the consistent AF accuracy that I get with on sensor AF capability rather than the separate AF module on DSLR's, but I'm still buying and using DSLR's, mainly for telephoto options at reasonable prices (Pentax DA*300 F4, Tamron 100-400 F4.5-6.3, Tamron 150-600 F5-6.3 are the ones I currently own).
I would like Pentax to improve their Live View AF even further and I'd be very happy using them for my macros with short lenses as well. I don't understand why they have on sensor phase detect on the K70 (but only use it for video with certain lenses and not for stills) but not on my KP. Also I wish they'd return back to lighter more compact lenses but I think that's a thing of the past (DFA150-450, DFA 50, DA 11-18 come to mind). I think I'd still be happy using DSLR's alongside my mirrorless for quite a while to come and if Pentax keep improving their APS-C models I'll keep buying... but I guess it's not about people like me but about gaining new Pentax users and that's where I doubt their strategy because I don't think Canon or Nikon are going to stop making DSLR's so they'll always be competing with them, only in a reduced market size.
The other thing is that they could improve the live view experience to duplicate mirrorless system and make it a lot more user friendly, then it would be part mirrorless and part DLSR, at the moment it's DSLR with mirrorless live view bolted on as an after thought.

Thanks to everyone for taking the time to comment, it's much appreciated.
It also appears I've invented 2 new butterfly species, the "haistreaks" and the "burdundies"..... It shows how much I rely on spiell chaeckers... Doh

Took the Pentax kit out to see if I could find some green haistreaks and duke of burdundies. I found quite a few once the clouds started to break up. Trying to find a green hairstreak without seeing it fly is similar to a needle in a haystack as far as I'm concerned. In fact sometimes even when I see exactly where they land I still can't find them. This was my first serious outing with my new 100 WR macro since getting it last november. I will say it's not love at first sight and it is a frustrating lens to use. Why can't it have been designed with a focus limiter....



The duke of burgundy was taken using handheld pixel shift and then stacking 2 of them to get better depth of field with the sigma 180 F3.5 macro. I am quite impressed with this pixel shift feature.


Both taken with the Pentax KP

My olympus om-d e-m10 mark ii has this feature called focus bracketing. You set the number of shots and the focus differential and it shoots them all in pretty quick succession. It works very well for hand held on insects. I agree it's a shame that Pentax have not implemented this feature. With Pentax I have to take loads of shots of the insect at different points. It is much slower allowing the insect, or me, to move. However one of the benefits of the Pentax is that it allows me to see the ingenious ways people get round the problem. Great ideas.

True, but it looked like it had drifted a bit. However I take the hint and will butt out.

I've enjoyed mine so much that I sold my K3 after never using it again for wildlife after I got the KP. The AF for dragonflies in flight is just so much better, birds in flight as well. If it had a better buffer and a battery display I wouldn't even be waiting for a replacement top tier APS-C. I think if most K5/3 owners could use it for a while they would see why owners rate it so highly. My best APS-C Pentax so far.