Skulboep
If you can fly a Sig Somethin' Extra well, then you should have no problems with a Giant U-Can-Do-3D. Set the plane up the way you like it. Very hot or tame it down. You can slow this plane down for landings as slow as most trainers if not slower. I have been flying mine for 2 years now and also have the 60 size with a Saito 100. I have a lot of fun with them.
Just my 2 cents