Lightning Mate is spot on. I loathe teaching students who have played on flight sims to any degree. They think they know how to fly and they WILL NOT LOOK OUTSIDE. It takes a lot of time (and their money) to sort out the bad habits they've got into.
There is a world of difference between sitting in your bedroom with a toy and using a professional simulator under proper supervision in the way that it was designed to be used.
Anybody that is serious about learning to fly should avoid sims and spend the money on an air experience flight instead.