Cons - Race Foster is a genuine scumbag and the light doesn't have individual reflectors, which you'd really need. Any t5 fixture with individual reflectors will work though, used tek-5's are cheap and should work well but sometimes the ballasts go out on them and need to be replaced. You can usually find good used t5 fixtures on here for not too much money too, or in the socal forums on rc.
Equally as important than the fixtures are the bulbs, I prefer ATI's