I have helped someone with an Arrow, and have a UCD 46 myself.

After learning with the Arrow, then switching to the UCD you will think.... "holy @#$#@ this thing is easier to fly than the arrow".

They are unimaginably simple to fly. Even with rates way up they are easy. It's unreal.... literally. If you don't use it for learning 3D it would just get boring really quickly because it is so forgiving.

You shouldn't have any problem.

The one thing it won't do, that the arrow will, is hands off recovery to level flight. But that's overrated anyway.