Capt,
The Extase is made in the Check Republic by S2G. It's imported by PlanePower in RI. You can do a search here on RCU and find it, Mike James in Anchorage did a write up on the plane. I found that it had a lighter feal to it than the UCD, Walls were very abrupt and without any wiggle. It lacks in rudder authority though, so flat spins an hovering is not as easy as with the UCD. It's also more expensive than the UCD, but not by very much (price is $220.00 I think). It does better waterfalls than the UCD, I was doing them about 10' over the runway, and ended up needing 11' he he, but it's repairable.
DKjens