I have a Dahon Briza, with 24in wheels. The main thing was that a couple of them can be easily loaded in my car. Otherwise I just ride near my home.
I am not totally satisfied, but it is OK. I'll probably change the crank gear to be larger, the very lowest gears aren't useful right now because they are so slow.
I also can't ride it without having at least one hand on the handlebars.
I use mine in two ways:
1) Multi-modal commute. I ride my Brompton to and from the train station on both ends of my commute, about 2 miles per segment.
2) Weekend/vacation cruising, if I'm going somewhere on a car or ferry, it's easy to take the Brompton along.
I use my Brompton as an alternative to walking. It is good enough to be my only bike and practical enough that I have no inclination toward a special wardrobe.
I have a dahon mariner bike. I like it even though I lack the boat it’s supposed to pair with (I put it in my car). It doesn’t fold as small as the bromton, but I think the wheels are bigger.. it’s useful to have the bike when traveling, dropping car at shop. I think I like the Danone better than my brothers bromton e-bike (which he won in a raffle.. lucky). Ebikes are great though.
This is an interesting idea, but I wonder if it collides into the electric scooter market.
I think dahon bikes are fairly nice, but I have not tried a brompton.
I have a dahon mu n360 with a variable transmission that I like quite a bit.
https://dahon.com/bikes/mu-n360/
However recently I bought two bikes direct e-bikes - pretty versatile and go off-road/to parks:
https://www.bikesdirect.com/products/motobecane/e-bikes-elec...
I wonder how people use their folding bikes?