Showing my ignorance again

, but whats the RC10 B4 RS specification like??
This is the ready to race version of the B4 available from America.
http://www.teamassociated.com/shusti...c10b4_kits.htm
As somebody who is trying to get back into racing again (on a budget) after a long time out, it looks like a good deal. But then like most good deals, its probably too good to be true.
Any advice would be gratefully received !!