I have flown just about every cub out there, and the goldberg cub is by far the best flyer on both land and floats. I don't like four strokes, but it flys great with a four stroke 52. Pleanty of power on floats and great take offs and landings at partial or full power on land. We do formation flights all the time with it. The great planes kit is good, but didn't fly as well. The sig and TF kits had major problems, and I couldn't say it was the builder. They were both qualified and build nice planes. Could have been a fluke, but I have never seen a goldberg that didn't fly well. Even flew one that I didn't think would fly that a guy screwed up bad, and it flew well will a little trim. You won't be dissapointed in it.