Well if you've the money to take longer because your instructor doesn't trust you to do things as he's teaching them, so won't let you progress, then fair enough.
Personally I never really had that sort of spare cash back when I was doing my PPLs (or any other licence to be honest, learning's an expensive business).
As an instructor and student of various things (not just in flying) I have seen few, if any, occasions where somebody who insisted on doing it their own way learned as fast as somebody who grit their teeth and tried to do everything the instructors way.
G