If you're even considering buying it, wait until the March update comes and goes. I'll give folks a quick rundown. I'm on PC, I'm Level 78, and I've played this for about 30 hours.
+Customization's nice. Ranging from the costume pieces to actual loadouts, it's pretty awesome.
+Gadgets are a lot of fun. I'm impartial to the Grapple Gun, but the Roller Skates and Glider Rig are also pretty neat.
+Gameplay is a mix between old-school shooters and today's FPSes. Think CoD-meets-Unreal or Quake.
-Matchmaking's awful. It takes quite a while to find a match, about five minutes or so, and that's if people stick around.
-Optimization's not good. A few of my friends have trouble running this game, and they can run Skyrim on High with a good framerate.
-There's customization, but a majority of players just run with a Mighty and Body Armor. Alright to counter, but it's really boring after the fifth or so match.
?Games for Windows Live. I'm used to it, owning a 360, but it might bother some folks, and it bothers me since I bought this through Steam.
?If you hated Stopping Power/Juggernaut from the old Call of Duty games, we've got Marksman/Kinda Bulletproof here.
Let's see... FPS, no dedicated servers, stock standard guns, can hardly level up unless you buy XP-- it takes a lot to sell me an FPS for more than a few bucks and this doesn't have it.
The no dedicated servers is an honest piss-off. It still bothers me even while I enjoy the game. As I said, if you're even thinking about buying the game, wait until the March Update hits. At least then it'll be getting some (much needed) fixes.