I had one of these for a short time. I sold it to make more room for other stuff. I bought because at the time they were having a sale on it that I couldn't pass up. I installed a Magnum XL .36A engine and that proved to be an excellent combination. Plenty fast and excellent vertical. I didn't have to modify much at all other than cutting holes in the cowl a little larger than what would be needed for a similar .25 size engine. It was a great flying airplane. Loved it every time I flew it. It will do everything you ask of it as long as you have the power. I would not put anything in it less than the XL .36A.
One change I did make was to the receiver antennae. I don't like antennae's flying out the back of airplanes so I bought a Deans antennae which left nothing sticking outside the airframe and never had a problem with glitches or signal reception.
When I did sell it, it was fairly easy to make the sale as the guy who bought was extremely impressed with it every time he saw the plane fly.