Got this case for my fiances droid3, she loves it, can now drop the phone into her purse with the holster on covering the screen and not worry about scratches. I really like the feel of the case.
Yes this case works with the extended battery cover and extended battery door. I've found it's a little easier if you put the bottom part in first and snap the top part on after. It fits perfectly fine for me.
the kickstand is underneath the holster clip, its a piece of metal that you have to pull out and then it functions as a kickstand, with the extended battery it's hard to get it to slide in all the way in/out but it's there if you want to squeeze your phone in it for the kickstand.