I havent heard of the company. If the to4* turbos are genuine garrett then yes theyre good. If the 16g turbo is a genuine mitsubishi heavy industries (MHI) turbo, then yes its good. The to4* turbos should be good for 500-600hp and the 16g is good for about 350hp.
I have had there intercooler/IC piping kit/and there T3/T4 turbo. The quality is up there. I just sold the turbo to another member sinc eI am going evo 8 route. They produce their own turbos. They are manufactered *sp very nicely.