I learned to fly helicopter's on the Blade CP. Went through alot of parts, and the good thing about the Blade CP is that the parts are not as expensive as many other helicopter parts. I still have my Blade CP and fly it around my yard often. I also have other electric helicopters that I have much more money in them and most are more stable than the Blade CP but the cost of parts and batteries for the other helicopters limits my flying them.
Give the Blade CP a try, once you learn to fly it, You should have little trouble with the more expensive helicopters.