There once was a time when R&R was one of the best around. As the resin market and technique improved, Modelhaus flew past them. The only resin kits that are worse are TKM.
R&R has pushed for "quanity" and not "quality".
I have built a few R&R cars, but if you buy one, plan on doing ALOT of grinding and modification to make things fit right and look right. Fresh molds might make nicer castings, but they run the molds until they are dead.
MHO.