[gameguy43]

The rider's orientation looks...insane.

They won't be able to see anything through the body of the thing (gotta squint at a little display to understand what the heck you're flying towards?).

All their weight is going to be on their crotch (and, like, the front part of it) or maybe their stomach.

Their neck is going to be fighting gravity in the most awful way.

[aeternus]

It does look somewhat awkward but the upper torso angle isn't much different from a sports bike. It isn't the most comfortable, but doesn't need to be given the flight times.

The fact that the rider's pocket is directly above the intake could be an issue.. I guess everyone riding these should be rich enough to not carry loose change.