My buddy and I love flying our Top Flite B-25's I had two,one with Saito 82's which I traded and my current one has OS 91 four strokes.They fly great and attract lots of attention at the field.They are not difficult to fly as long as you don't try to lean the engines out too much and give it a nice run-out before take off.Landings are very smooth and I normally use half flaps.Theres still a few out there but its tough to find parts.Another really nice ARF that's been discontinued.