I have to agree with Woody. I have a F1, I am only a beginner. It is easy to take off and as soon as you get it about 3 mistakes high you can throw it around a fair bit.

It glides forever! Have to take a lot of speed off for landing.

I also converted mine to a tail dragger after one to many hard landings on the front wheel. Still flies excellent though! I put even bigger wheels on it though and it can roll anywhere.