i did get one yes and put it on yesterday, easy to fit and 6 differant settings for power or whatever. i went for a "king quick" as we can get them cheaper at work.
first impressions at the mo are huge differance in power once the turbo kickes in, it feels alot less reluctant to stall when setting off from a stand.
it doesn't appear to be smoking much since i fitted it. although for a laugh i upped the power to max and it made it not run right at about 2000rpm but after that went kike a rocket.
if you need any more info give me a shout.