It would be much faster if I got the aerodynamics right, but on this first build, I did get the ergonomics correct for my needs the first try. It's very comfortable to ride and easy to use, with plenty of storage space. It can also be brought through a doorway into an apartment. From downhill testing, I was able to derive a CdA figure of 0.25 m^2, but commercial models exist that have less than 1/5th that amount of aerodynamic drag. With the first body I made for it shown in the above videos, it required approximately 500W of power to hold 30 mph on flat ground. I've reached more than 50 mph downhill in it and it has proven stable while making a lane change at that speed over imperfect roads, and the mechanical braking system has proven adequate.