Also, with a top speed of 70 mph and range of 70 miles, it does not look like a great daily-commuter vehicle. This device looks like a good fit for an expensive urban fast-jump service, or a good solution for places where roads are hard to build, like going to a forest hike or a mountain trip.
The only thing is, something invented for a niche market on Sunday will be made much cheaper on Monday, will be widespread and causing mayhem by Tuesday, regulated to the hilt on Wednesday, the sole domain of big corporations by Thursday, and used for aerial assassinations at-will by the military by Friday.
(My little sequence there takes a cue from this talk, posted on HN yesterday: https://news.ycombinator.com/item?id=16106331 )
Winged aircraft is so much more economical, but it's necessarily large.
Remember weight is the real limit. So, having a single passenger frees up ~150 lb for extra fuel.