AF-360 FGZ Alternative?

On evilbay I came across this flash unit http://cgi.ebay.com/AF-Flash-for-Pentax-ist-ZX-PZ-ZX-SF-LX-MZ-645NII-67II_W0QQitemZ7596769981QQcategoryZ15221QQrdZ1QQcmdZViewItem made by Bower and claimed to be equivalent to the AF-360 FGZ. Does anybody have any experience of this, particularly with use on a *ist DS? It's cheapo price lead me to 2 conclusions - (a) if it doesn't do all that a 360 does, then I haven't lost much money (b) it is too cheap to be true, and I should save the money for a tru AF-360 FGZ!

Yours, confused :

I can't see anything there that says that it's P-TTL as it would need to be to be equivalent to the 360 (and to work properly on a DL).

For the DS where the flash doesn't need to be P-TTL then you might want to look for a AF400FTZ on Ebay as I've seen those for similar prices - that's an excellent flash and works very well on the DS.

OK, I'll keep my money in my pocket for now! Even the official bower website doesn't mention the specs of that unit.