Positives:
1) Someone finally attempted a quadcopter simulator for iOS.
2) Physics are pretty accurate.
3) Ability to practice FPV in your downtime without ruining your $1000 bird.
Downfalls:
1) Only two flight modes available (alt hold and acc walk) and no basic RTL option.
2) Paradise flight setting doesnt work worth beans on my iPhone.
3) No gimbal maneuverability for practicing AP.
Overall:
It was worth the measly $3 I spent on this app.
jachebrown about QuadcopterFx Simulator