Witty, inventive, weird, configurable and very deep. The desolate state it's been in for a while now is a damn shame. Like most Source games, the community servers are (or were, now) an infinite abyss of weird subcommunities and incoherent map architecture. Virtually impossible to encapsulate the full extent of my experience with it in any amount of words - it's just too broad. The core of it is, was and always will be the best balance between tight competitive shooting and ludicrous wacky mayhem.