Lud, I agree. The turbo kits have more problems for two reasons:
1) The early version of the Bell kit did not compensate for increased fuel demands well enough and people leaned out (expensive). It is also easy to run the boost up with a turbo and, if your fuel system has not been significantly upgraded, you again lean out. If you are running only 7psi, you can easily require 50% more fuel than a normally aspirated engine (static atmospheric pressure at sea level is 14 psi).
2) It is easy to run the boost up and make too much power for the stock motor. The NSX is an open-deck design and more than 450 hp will case the block to fatigue and suddenly you have a lot of broken parts.
The Comptech supercharger addresses these issues by being a complete, nearly idiot-proof system. If you put it together exactly as they tell you, it should not cause problems (except more speeding tickets).
As I have said elsewhere on this board, I had my boost set at 9psi with the Comptech kit (custom pulley) and had no problems at all. They usually run 7 psi.