i play wsw actively on ica servers and i can easily confirm that this is one of the fastest games atm. by fast, i mean quite faster than this guy on the video.
ica has the most servers and players on warsow that you can find a server with some players at almost any time. most of the time 4-5 servers are populated enuff to play.
see my videos here which are recorded like years ago. the version was 0.5 or smth
(dont mind the 150 fov ive used quite long time)
http://beta.xfire.com/users/w0rnoff/videos
altho these are quite regular shots, this one if my fav:
http://beta.xfire.com/videos/133e24
there are plenty of guys who play real well
id say download it now, if you rly are into fast-paced fps