If it's the Hanger 9 Pts Mustaang then the sim will not be a Realflight, that is a Tower Hobby product. We have lots of guys using the Mustang trainer it should be fine for you to learn on. I'm not a big fan of trike gear trainers, most people go on to fly tail draggers anyway so you might as well learn on one. You can find lots of used sims on ebay, Rcu etc.