Hi Jan, that's not true.

@ the OP
Gyros can expand your enjoyment of the hobby, which is after all, the idea of a hobby.

There's several gyros on the market from cheap to not so cheap. Powerbox iGyro, Demon Cortex, Aura, AS3X receivers and the plug in AS3000 if you fly Spektrum, all all excellent and high quality and several I wouldn't bother with unless you're sticking them in a foamy.

Each of the above have their setup and flight differences and implementations but they all work very well.

What airframe are you considering installing a gyro in?