if you use your head, and dont get cocky, you can learn on anything really. gear up, be careful with the bike and you'll be alright. its when you let your ego get ahead of common sense, that you start to get into trouble.
thats a great bike in general, but like I said, be careful with it. its NOT a tame machine. but on the upside, you sure dont need to worry about upgrading to a bigger bike later.