Well... I really like it!
I look at Battlefield a bit like PES/FIFA - you know the core of what you're getting, you'd never play it and go "this is a completely different game from before, now I have to relearn everything". DICE aren't going to throw away a winning (best-selling) formula just because they want to put the game into a different era stylistically.
Battlefield is Battlefield (as of BF3) - it's going to be set on open maps, it's going to have Conquest (which I still love, especially as I'm usually a lone ranger and I can grab flags by just sneaking in and out of unmanned areas), the classes are always the same (that "revive" needle of the medic's is a bit scary).
I like the new vehicles, I like the feel of the artillery, gunplay feels a LOT tighter to me and it seems to take less shots to kill / die, which I much prefer.
I don't like the map a great deal, admittedly, but there'll be plenty of others, and variety is the yada yada yada.