Not bad, but.....

Overall, the flight engine works O.K. but response to iPad movement sometimes lags. I have crashed on what looked like good runway approaches but then all of a sudden, the flight engine will stop responding and then move dramatically. A few more bug fixes and some details added to the flight controls and scenery and this will be a pretty good game.

Pil0t42 about Flight Unlimited Las Vegas - Flight Simulator, v2.1.1