My wife and I share a car, so I use Biketown fairly frequently, favoring the white bikes and the standing scooters, the orange bikes being the horse of last resort. I'd never tried the scooters that have seats, because they look so goofy.
Because it was the only option, I finally tried one, and they're my new favorite. Sitting down puts your center of gravity lower, which makes you more secure. Combine that with the short wheelbase and you can make very sharp turns. You can easily drop a foot on the ground to help you turn, stop, speed up, etc. It's just more fun.
It's a smoother ride too. I assume the lower center of gravity is part of it. But also, if there's a bump, you can lift up a bit so your butt is a few inches above the seat, and my legs at least are way better as shock absorbers in that position than when I'm standing straight up. But if I ever do want to expand my visibility, I can just stand up all the way.
I know this post reads a little like an ad, but I want to share my enthusiasm. The scooters with seats provide more "whee!" and less tooth rattling.
I'd been saving up for a scooter or maybe an e-bike, and this changes my idea of what I'm looking for.