As someone big into COD4 (~2400 hours) and MW2 (1000 hours)... I can't reccomend Black Ops. If it was fixed maybe but theres way too many gameplay issues and performance issues.
As Rroff says, needs fixing 1st. But they are releasing a DLC 1st instead of fixing the game and releasing mod tools so it's not great at the moment.
As someone big into COD4 (~2400 hours) and MW2 (1000 hours)
unlike a lot of haters who just put it down for the hell of it
black ops actually made me return to BC :/