There have been quite a few debates about it on here. Everybody and their brother seems to run that kit over on The Corral. Just check out their turbo section.
Where've you been, buddy? There's been like 6 threads on those turbo kits in the last month!
Word on the street is that they used to have reliability issues, but they seem to have them straightened out now. Do some google-ing, you'll come up with a lot.