I am currently flying one, OS 91FS, and it is a sweet scale type flyer. Many years ago I owned the real thing and the model flies just the same. Capable of scale type aerobatics and a forgiving flyer.
The only modification's to to kit was to add a additional nose wheel bearing for extra support for the canted nose wheel leg and bigger wheels for flying of long grass.
And with such a big canopy,be sure to put in a pilot.