I've had a set of Rota's. I don't use them anymore, but honestly I never had any issues with them.
For what I paid I thought they were good value and reliable rims. It's a bit of name vs. JDM fanboys I think in this case. In terms of engine modification, brakes, suspension I haven't skimped/wouldn't skimp. But honestly when runnin them I was very happy with them.