Ryan's advice is good, and I second it.
I would like to reinforce the idea that using the free time of the computer to save paid time in a plane, is a good idea up to a point. It extends to an even more basic level, while taking helicopter training, my instructor told me that he uses Google Earth "flying" mode to familiarize his students with the local terrain, to save flying time in the helicopter. Another form of simulation...
In the old days, we'd learn takeoff and landing technique by watching endless circuits of the other students, in between our lessons. You can learn a lot that way, but very certainly you can only learn so much. You have to get in and do it yourself too! I think the same can be said for simulation in any form.
Simulation has its limits, and values, keep it all in context, and you'll do fine...
Pilot DAR