I have 2 of the approx 250 Kleins that were built with Steinberger in the 90's, the GK line. One is a black GK4T, the other a white GK2T, the one
Allan Holdsworth gave away, which made it all the way into my hands.
I believe Steinbergers are the best guitars out there, bar none. Only nostalgia keeps me bound to
Ibanez guitars in some way. But when I practise or do studio work, I always reach for a Klein or a Steinberger.
The Steinberger is the next step in the evolution of guitar. The Klein is the next step in the evolution of the Steinberger. Anyone who has played either a Steinberger or a Klein will know what I mean, there is simply no way to explain it. It is how playing should be. You will not know what you've been missing until you've tried it. I work professionally in music and have convinced everybody whose hands I have put a Steinberger/Klein into.
Bottom line, if you can afford to get one, do so.