Overall, Left 4 Dead is a fun, time killing, zombie game and I think it's worth buying. If you don't want to buy it, just rent it to give it a try and see how you like it. It does get fairly repetitive, so renting might be the better idea for you.
As far as the controls go, they are pretty much just standard shooter controls and for once, the sensitivity is actually not too bad. You can raise it up so that it's at least playable for those of you who are like me and need high sensitivity to play at...
