1. The original games had issues, too. Especially the first one (which I still like a tad more than the second game). The issues didn't take away from the experience much though since it's a one of a kind game. No other game offers the species variety in SP and MP. So if you liked AVP1&2 and love the movies, you'll probably like the new AVP. 

2. Usually people who always complain about balancing issues haven't really figured the MP yet. If you can handle your species, you're gonna be successful. The Alien and Predator take a longer time to master though and I'm pretty sure the alien controls will draw lots of criticism in many tests - you need patience to figure out how to play the alien properly and even then it's still a bit clunky.
 
edit: I'm halfway through each campaign btw.

First of all, nobody plays AvP for the Deathmatch mode. I'd wait until you get a chance to play infestation, predator hunt, and survival before you dismiss multiplayer. I certainly can't wait.
 
Yeah, the controls are a little clunky compared to a call of duty or something, but I turned the sensitivity up a little and I was fine. At least they feel like they have some weight to them.
 
As far as the balance, as long as everyone plays smart and keeps their head on a swivel, everyone has a good chance at winning. I played as a marine a lot and expected to get messed up every time. Instead, I usually came out on top.
 
...and next time, you might want to tag the game when making a thread. I made the same mistake.

" But unless your into Quake or UT then the multiplayer gameplay is very forgettable. Anyone else less than impressed with the demo? "

" First of all, nobody plays AvP for the Deathmatch mode. I'd wait until you get a chance to play infestation, predator hunt, and survival before you dismiss multiplayer. I certainly can't wait.  Yeah, the controls are a little clunky compared to a call of duty or something, but I turned the sensitivity up a little and I was fine. At least they feel like they have some weight to them. As far as the balance, as long as everyone plays smart and keeps their head on a swivel, everyone has a good chance at winning. I played as a marine a lot and expected to get messed up every time. Instead, I usually came out on top.  ...and next time, you might want to tag the game when making a thread. I made the same mistake. "

I disagree, I really enjoyed the demo.

" edit: I'm halfway through each campaign btw. " 

" ...and next time, you might want to tag the game when making a thread. I made the same mistake. " 

man the defense force is in... full force. 

" @TwoOneFive: Hey man, they're just opinions, just like the OP's. Do you have anything constructive to add? "

" @JeevesPleez said:

" @TwoOneFive: Hey man, they're just opinions, just like the OP's. Do you have anything constructive to add? "

aww did i hurt your feelings? "

I thought it was okay.  Wouldn't play it seriously like MW2 or anything, but it would be fun for a little while.  Although you are right, it does seem to have some balancing issues.  Like if you don't want to win then play as an alien, if you want to win play as a predator.

Aliens are the shit. I love the wall climbing mechanics.