I played the first game at a friends house. I wasn't a big fan. Then when I saw this one was coming out, I thought I would try it. I played for about and hour and sent it back. It is exactly the same as the first one. If you liked the first one then you will love this, but I didn't.
I played the first Left 4 Dead for almost 9 months. There are very few games that hold my attention or remain fun to me after playing them for that long, but Left 4 Dead is one of those rare games that really combines skill and team work to make it fun. The versus modes are some of the best out there. There is nothing so satisfying as taking out all 4 survivors or slamming that door shut with all 4 inside. This is one of the best franchises out there right now and if you've never played it you owe it to yourself to pick this game up and at least give it a try.
To all people who rent this game buy it buy it buy it! Me and my buddy went play it a few days after it came out. It was the best thing sice Left 4 Dead 1! We played it the entire time we were there. We played cooperitive mode. Let me tell you something, the days of killing infected with guns alone are over! That's right there is melee weapons like a guitar,frying pan,katana(Japaneese sword),machete, and one of the best zombie killers ever a chainsaw! So Left 4 dead 2 has a lot of good fetures, rent or buy it. You need to play it!