Personally I don't like the new Inferno. I very much miss the old CQB style map, combined with high ambient heat that forced alternative thinking from players. Next to no long range camping, pewpew laser boats were unuseable, and all up front and personal. The new one is just way too big, but retains all the craggy hills and overhangs that still force close battles, but you have to walk 5 minutes to get to those battles now. Please reintroduce the old Inferno as a separate map.
The changes to Clearcut don't seem to change much (I'm not saying that in a bad way), it just still plays teh same mostly. Aside from being x10 laggier than it used to be.
New Extremity is good, like it. Good mix of terrain and open areas, and a lot easier to get around on.
Frostbite - meh, dunno. I like the smooth open rolling hills, but it's too big. And too god damned bright. I don't want to wear sunglasses to play a game, I really don't. It also makes chat and system messages unreadable.
Sandthingy - similar to before, and in my opinion the best all round map. It has long range areas, close range areas, very unlaggy. I did however play on one server today that had some insane fog/dust going on all the time with about 40ft visibility. Don't know if this was a glitch or what, as the other 0.2.0 Sand maps I've played on haven't had this.