S16 Pro is good for this use and can even do decent offroad. I would avoid the Falcon right now (fragile, wait for V3).
I have an old (and, I know, flawed) KingSong S18, very happy with it and complementary to my Master and Commander Pro. I am intrigued and would love to try the new S18 PRO 50S version... it might be a very good choice for commuting https://oneride.eu/en/kingsong/1285-kingsong-s18-pro-50s-cells-electric-unicycle.html?utm_source=google&utm_medium=cpc&gad_source=1&gclid=CjwKCAjw9eO3BhBNEiwAoc0-jfJX6j_lKgTM5u49KvGc2bVRkUo_FY7eWVez3OLY0uPkw-uTlg8CmBoChYwQAvD_BwE
Good trolley, +++ lightweight, reliable high discharge cells and good spiked pedals for the newest PRO version, decent autonomy for commuting, decent speed (but top speed not enough for you use ?), sufficient motor power, nimble (in particular with dedicated ClarkPads), solid (versus Falcon), and not bad for light offroading. And CHEAP. Is there any other thing out there proposing such a lightweight package right now ? I did not see any serious review though.
S16pro offers much more than the S18 for sure, and for a pricetag comparable and better water resistance. But too heavy for me.
Obviously, Lynx, Blitz, late-generation wheels like ShermanS, offer much more...but are heavy as hell in stairs and trains, and are not single-purposed commuting wheels.