I've never owned a folding bike before. I saw no need, living a mostly local life with a bike that already did everything I asked of it and easily fit on the front bus rack. Since I travel with musical instruments, taking along a folding bike as well would be impractical at best.
Today, a friend handed off a folding bike she'd gotten from someone else. I pumped up the tires, lubed the chain, adjusted the brakes and took it up and down the block. It didn't feel wobbly at all.
So I decided that when I ran errands later, I'd take the folder out on an extended ride and see if it was something I'd want to keep in my stable.
My friend who knows more about folders than I do (and who sells them in his shop) told me it's a pretty nice bike, and probably retailed for $600-650 when new.
As folding bikes go it's not unattractive.
This one came with SKS fenders, rather nice road tires and a rear rack that, while proportioned to a 20" wheeled folding bike, would still be useful for at least some portage.
The adjustment range seems adequate for most adults (though anyone over 6 feet would find it a little on the short side for extended riding).
The plastic pedals are cheap and not terribly durable. They're also not very comfortable; and if I keep this bike I'll swap in something easier on my feet.
The straight handlebar is a non-starter for me. If I keep this bike, I'll definitely swap in something with at least a little more sweep, even if it partially defeats the folding purpose.
The biggest bummer on this bike is the shifting. A cheap derailleur, made by an anonymous factory and stamped with the Dahon logo, sits in an odd position, bypassing the cable housing stop and requiring full-length housing to function. Worse, the cage is too short to allow for good chain-wrap in the largest cog.
And even worse than that, it's a Rapid Rise derailleur, so when you pull cable the gearing actually gets lower, and when you let cable out the gearing gets higher. I know some people like it, but I've never been a fan. Combined with the entry-level grip-shift it does little to inspire me.
Replacing it will be a bother, another reason to let it be and pass the bike along to another home.
But I'll give it a week or two before I decide.