I like this for several reasons more than subways.
1.) Obviously because of spatial awareness, sightseeing.
(less important nowadays because of smombieness)
2.) Separation from other traffic.
There is almost the same system in https://en.wikipedia.org/wiki/Chiba_Urban_Monorail
There are some videos on youtube of both systems, from drivers view, and on ground. What made me sad when watching them was they felt relatively loud because of the resonance body the "carrier" makes. But I think that could be managed.
Maybe it even was an artifact of the video. Don't know. Has to be experienced IRL. I know only the Wuppertaler Schwebebahn, and that felt acceptable at the times.
Ultimately something like this should be able to run 24/7 without disturbing any residents at night, windows open.
