I've tried it, I wasn't impressed, and as a chopper dude I have plenty of good gyros laying around and am well versed in setting them up.

One thing, and this is a common use, is with my way over powered Funtana I could just slam full throttle sitting still and it would track straight down the runway. Lots of guys use them for this.

For hovering and torque rolling, its more cost effective and a bigger benefit to just buy a foamie and learn how to hover.