Thanks for the feedback! I agree with pretty much all of your points. Juice and UI polish were the two next points on my todo. Sadly I worked on the bare minimum needed until the very end.
For the controls I really like the ideas you mentioned. I also felt like it was tight controls but missing something. It IS just moving along the camera aim so you got that right XD.
I also agree that having the speed boost unlocked from the get go would be a good idea. My thoughts were that you start out slow, get the hang of what is happening.
Thanks for all the feedback again!