most are fine.... and have various advantages and disadvantages. Some are slightly better than others, but when it comes down to it - the boost controller is just one part of a whole system. If you do something stupid you can kill the car, so yes I guess they can be a bit dangerous in the hands of somebody who doesn't know the various ins and outs.
I think you QLD'ers must love blowing up engines, and seem to think just winding up the boost to 18psi is a great way to get more power
do not run more than 12psi on a stock ECU r33.. .
do not run more than 10psi on a stock intercooled r33..
maybe you can for a little bit but over time, something go bang, wallet go bang, fun of owning a turbo car out the window.