Left 4 DeadZero Punctuation's review. As it turns out, Yahtzee doesn't completely dismember the game, though he doesn't outright praise it either. More or less the review outlines what most have said. The co-op is fun, the level selection is a bit limited but overall the game is well designed. The verdict: it's up to you to guage whether or not the fun to be had in Left 4 Dead is worth the price of admission.
Check out the review after the break (as usual, the video contains some language that is NSFW).