does anyone have one and if so how do you rate them

I held one and looked it over carefully. Everything seemed first class about it's manufacture. However it was a new engine at a model show. They've been around this country at least 6 years. Sig sold them at one time as did Dave Gierke of Model Airplanes News fame. The only mention I've seen on RCU/RCO since the late 90's has just been a inquiry.

Enjoy,

Jim