Very fun.
I found this game to be very enjoyable. I played it right through to the end and I still wanted more. But in response to the fellow below who said he glitched it, I found out how to do the same.
How to glitch:
1) Pick up your plane.
2) Move the plane into the lower lefthand corner.
3) Quickly move it slightly forward and up before immediately releasing.
4) (The game would freeze for me at this point.) I held shift (boost) and A (tilt back) until the game unfroze.
5) The plane will hover in place and your distance will increase as long as you have speed.
6)I boosted until my speed was about 56 m/s then left the window inactive.
7)Clicking the embedded flash will bring it back into focus and drop your plane on the ground.
I was playing around with it and just let it sit. My distance reached 10,000 m before I let plane drop and bounce. I only hit one star, but I earned $5000.