I tried one before getting my Racesafe and really liked it. Only problem was if the back part fitted the front part didn't and visa versa. They don't sell them as seperates as far as I know which was a real pitty.
A friend of mine has one. Nice, good fit and similar to a racesafe. She has had 2 of them and likes the fit. I think they are quite good value, but, in my opinion you can't beat racesafe.
I would highly recommed one, I have used this make for many years now and have sadly had a nasty freak accident where the body protector did indeed save my life! It comfortable and doesnt restrict my movement.
i've got one, i hate BP's at the best of times , but hardly notice this when im riding, never seems to get in the way, although i only ever wear it for xc...