I do agree BelArg, the game is useless for flying larger aircraft. Developing instrument skills on a Cessna 172, is fairly good, but the larger aircrafts, 747, is complete BS, would not even waste my time on it.
I personally woud NOT use it for learning to fly any complex aircraft, as it not good for that.
Also depends what equipment you use with it, example size of screen and controls, but I do agree the 747, or other larger jets are not really good learning tools, with exception of practising with FMC etc.
To do that, put it on AUTO pilot, to learn functions, as the controls are to unrelastic to use on larger AC, and has nothing to do with real flying.
But fly the Cessna to learn basic instrument skills.