I will admit that I didn't like BFBC2 and that may affect my opinion a fair bit, but I went on this with an impartial mind and really don't like it so far. First off, one map and one game type isn't enough for me to want to buy the game. Next, the bugs I've found so far (Knife or Ammo/Med box becomes primary weapon, running across water, spawning teammates deactivating your gravity making you fly a few meters in whatever direction they push you in and ADS not working in certain conditions) are waaay too numerous this close to the release date, bugs are to be expected by come on, for a major release this is pushing it.
The destruction physics look ok, but the opportunities to apply it are few and far between compared to BC2; what happened to blowing a huge hole in a wall to get at the objective or throwing a grenade to make make-shit cover? Also, the guns need to be more balanced (5 shots to the chest with a sniper rifle means he's dead in everyone else's books) and everyone needs to stop dancing while they aim, a little bit of movement doesn't bother me, but when you're trying to line up a shot with a sniper rifle and your character decides that it's the best time to start doing the macarena is pretty annoying.
My opinion, it isn't making me want to buy the game. I wasn't keen on it before, but so far Dice has succeeded in making me honestly dislike the game, rather than be indifferent to it.