I like this simulator a lot. I've trying to use it to train before going wild with my drone. 

I have some suggestions though:

• seriously consider implementing a VR mode so Oculus/Vibe owners enjoy the full experience
• I miss a lot an option to fly a non-racing drone with GPS mode enabled which makes the drone stable without even drag. I've tried to change the settings to tweak the drag but throttle still is different. Not sure how difficult could be simulate this kind of flight mode but the simulator would be attractive to more people. 

I hope you find this suggestions interesting enough to  develop them 😊

In the past I saw some tutorials about converting a non-vr unity games to vr. Not sure about the dificulty nowadays but I guess it will be easier.