I preordered it (did a 4-pack on these forums) and am eagerly anticipating it. At first, I figured it was just going to be "Hellgate, but not crap". Plus, I absolutely love the art style and humor of the game (finally, something slightly different. And, it reeks of Mad Max/Road Warrior).
Then, I read the RPS "Verdict" on it today. If it is even half as entertaining as they described, it was worth whatever the hell I ended up paying.
Most of the complaints I have seen focus on the following:
Art Style: I can understand how some people might not like it, but I find it fun. At the very least, it is different than the "standard template construct" crap that devs use these days. Case in point: I am 75% certain that the wrecked train car/bus from Fallout 3's intro is the same one I took cover in when I played STALKER...
Humor: Yeah, it seems pretty over the top and tongue-in-cheek. So?
Lack of plot: Meh, it is a sandbox game.
DRM/Price/Disdain for Gearbox/Use of Gamespy/Other Stuff: People always find reasons for not liking something. And no matter how weak/biased those arguments may seem, you can't change their minds. So, whatever.
Navagon: I was going to ask if you throw violent tantrums when mummy doesn't buy you the latest Halo, but if you shoot illegals...
Rohan15: Actually I never really cared for Halo, you are confusing me for my little brother. Besides, Halo isn't that fun to begin with.
Way to miss the point :p