I ordered v2 the first day and couldn't be happier with that decision. The screw on the mic/program flap is worthless don't ever remove it or you will twist the head right off the screw.
As far as the radio, I have added the 771g and i didn't need to use a dremel tool to get it on like the v1 and the FM radio works. Also I found it exremely annoying how it would always keep scanning the other channel when I only wanted to have one working. The dual PTT is nice as well. I have kids and 80 year olds; and I need to keep things simple at times.
I got an extra battery as well and the charger can just charge the battery without the radio. I don't recall v1 doing that?? The battery charger also has a dc input hole so you can use any dc power with it unlike the v1 that was straight ac cord only.
I like how I can make the radio simple or complex.