""It is a completely different game" (I hope i quoted this correctly  )  You Nexuiz guys always say this. Why? What's different? Better graphics? Better ping (most of the time)?
For me it's the same game. Just a new version.
I still play nex almost every day switching from Xon.
And  the feeling is as like you are having sex trough the pillow  
As for the community - almost all minsta-nex folk moved to Xon. The best nex players are there now: qbit jngm, neo, vega and the whole element clan now.. Even the diehard Freeze comes from time to time.