Cubs aren't super hard to fly. They just get tossed around a lot in the wind and require a sensitive touch on the ground. If you're wanting a plane to just work on your piloting skills and sharpen your reflexes though, consider one of the "sport planes" or "aerobatics trainers" that every maker sells. H9 Ultra sticks, Sig 4 Stars, and lots of others are easy flying planes that will let you learn aerobatics but still be forgiving. Most pilots have at least one of these because they are just fun and relaxing to fly.