CS : source is overall alot easier and more fun than 1.6.. but it also attracts more N00bs... and even n00bs with an automatic rifle spraying away randomly can kill you without too much trouble.... but the new engine kills alot of the problems the old game had like bieng damaged by a grenade that exploded on the other side of a brick wall etc.
I like , much better than most other games like Sof2 , unreal or quake .