I had my original CT upgraded to a 60-1 wheel from Majestic in Dallas, it ran for 10k+miles with me pounding on the car all the time and then I sold it with no shaft play. They made me a custom bolt on with the boss housing and I have put 10K miles on it and it has been great!! Still no issues.
I think that MKIIINA kept having problems with oil lines in his car, making the turbo go out. Because when I got mine rebuilt by them, it blew on the dyno at Gotham Racing the day it was put on. I took it back to them and they opened it right up in front of me and showed me that it was my fault and that it was not getting oil. I went home and my line was messed up. They fixed it right then and now I have new lines and a turbo that has over 10k miles on it.
Mike up there is great I have several friends with domestics that get their turbos from them as well.
Another good place to go to is forcedperformance.com they build some bad ass turbos too for a good price.