I just wrote a post in the Steam forum for the game asking people there, what is the problem with this title? It seems there is almost no multiplayer community at all for some reason and I read some negative remarks but they were just general and did not actually state what they didn't like about it.
I'm tempted to get it for this cheap just to play with the bots. The trailer looked pretty cool. I'm surprised an inexpensive shooter like this didn't do better but maybe it has some serious issues.
I think, the problem might be that Nexuiz is originally a free game http://www.alientrap.org/games/nexuiz
The advantages of the new Nexuiz are... a bulkier engine and bots, both not adding much to the MP? Just thinking, haven't touched either of those games.