Didn't "hate" it just was disappointed with its lag and how it came on boost, also had compressor surge (Hated the flutter).After buying the HKS GT-RS, the lag wasn't that much better (but still a little improvement), so I started looking at other things that could cause the issue, and I found my "hi-flowed" custom made exhaust to be a big part of the issue. Below is a graph of a comparison between the custom exhaust and an Apexi 3.5" exhaust.
The result was absolutely GREAT!!
I was then about to replace my "truck core" fmic, which I had in the car for the past 6yrs, thinking that; if a change in an exhaust could make such a difference, the same principal would apply to a sub-standard fmic. But months later, b4 doing the test/comparison, I lost compression on cyl 3 at a track day. So now I am building up a completely new engine with new turbo/ fmic/etc; this will void any comparison with the previous setup.
Apart from the compressor surge (flutter while accelerating), I now realise that the rb25 hi-flow, with the VG30 ext housing, was a good turbo and made heaps of power: 270rwkw @ 16psi (R33 rb25 engine had Tomei cams and head porting). The turbo is now in a R34 with a completely std Neo engine, the guy uses the same mechanic as I do, and I advised him of the flutter/surge b4 purchase. He absolutely loves the flutter, both off and on throttle (as he blocked the bov), and the car is making 265rwkw @ 15psi.