Well I’m one of the people who put hundreds of hours in the game and will probably keep playing it on and off for a long time. One of my friends is an absolute L4D2 junkie and he loves it too (even more than me actually) but it doesn’t work on everyone. Personally I really like how when everyone knows what they’re doing it really feels like you’re a real team even though you might have never met any of the other players before. A good chunk of the levels are quite corrydor-ey but the environments are very detailed and truly feel massive at times when you look up and see these sprawling messes of pipes, cables etc (and I think the fact that the layouts you navigate aren’t as complex as in L4D2 doesn’t hurt the game that much since it is a lot more combat-focused). Plus the Jesper Kyd soundtrack slaps.