I'm on an InMotion V5F, which is the slightly more recommended entry-level EUC. I understand that Begode is a better brand once you get into the midtier, and KingSong is the best high-tier brand. My only complaint is that I wish it went a little faster (I guess that's always the case no matter the top speed). It's much easier to transport when it's flat (i.e on foot) as it has a "leash" and just rolls along next to you. It has ~18miles of range. It took me about 8-10 hours (basically 50% of the battery) to successfully balance, with pretty extensive prior experience with a OneWheel.

They are objectively safer so far as the forwards/backwards balance goes. The theory is that it's all around safer because of the psychological effect of the steep learning curve. You do still want a motorbike helmet and BMX/skating pads (the community is way more pro-safety, which is nice). You'll need to try soft-sole and hard-sole shoes, one of the two will be unusable for you due to foot/sole fatigue. Once you get to mid-tier, you generally see incrementally more biker gear.

You don't look as cool on it. It doesn't have the same emotional impact. It is way more fun.

You could also look at electric skateboards or scooters.

Something with two wheels and a handlebar (bike/scooter).

Electric unicycles are a lot of fun. I've ridden both and strongly prefer EUCs, and that is coming from a seasoned snowboarder and skateboarder.

roller skates!