Ebay battery grip?

Hi all I've just purchased a k20 and have taken the battery grip from my k10 and put it on the k20.

I would like one for my k10 but am a bit strapped at the mo so just wanted to know if anyone has had any expierience of third party battery grips like this one on fleabay. http://cgi.ebay.co.uk/Vertical-Battery-Grip-For-Pentax-D-BG2-K10D-K20D-bm04_W0QQ...

As you can see it looks pretty good although doesn't have the control wheels or the AE-L button.But as the k10 is now my backup camera and the one which i'll use the least would it matter.

Scott posted this link, he's the man to ask.

hope this helps, i think its brilliant alright it not up to the quality of the pentax one but i wouldn,t be with out it,[IMG]http://i727.photobucket.com/albums/ww272/scottthehat/my%20camera%20gear/IMGP2609.jpg[/IMG]
[IMG]http://i727.photobucket.com/albums/ww272/scottthehat/my%20camera%20gear/IMGP2611.jpg[/IMG]
[IMG]http://i727.photobucket.com/albums/ww272/scottthehat/my%20camera%20gear/IMGP2610.jpg[/IMG]
[IMG]http://i727.photobucket.com/albums/ww272/scottthehat/my%20camera%20gear/IMGP5303.jpg[/IMG]
[IMG]http://i727.photobucket.com/albums/ww272/scottthehat/my%20camera%20gear/IMGP5302.jpg[/IMG]
[IMG]http://i727.photobucket.com/albums/ww272/scottthehat/my%20camera%20gear/IMGP2613.jpg[/IMG]

Cheers scott it looks exactly the same as the one on ebay.
It looks great on the camera as well. I think i'm gonna have one

thats the same person i got mine from, and i haven't had any problems with it at all, and alot of them dont have the three metal pins on the top which this one does the same as the pentax one,and it fits very well,

I've took the plunge scott i might av one for the k10 aswell once i've checkeed it out