I have bought some wheels from them and they are great. They were all used and not new. RB motoring don't even do retail all there stuff are straight from japan second hand, rarely new.
you have to remember that they deal with JDM parts which are used in japan, that is there specialty. theres other shop that sell new stuff but its not going to be JDM but something like rota, drag, or konig . Just make sure you do your research on what shop specialize in before buying.