If you are training for instrument flying, then X-Plane is superior to MSFlight Sim. The aircraft handling and intrument realism are much better. When used with proper controls, and displays,etc., X-Plane is accredited by the FAA for logging hours. You can adjust the aircraft panel to match what you fly in reality. AT £25 it is one of the best purchases you can make (also worth considering the massive VFR addon for a few quid- just for fun).