We owned one; it was bright blue with a white roof, white bonnet stripes, and white wheels.
What we liked about it: the looks, great little engine (get the S model if you do buy one), retro interior styling, gas mileage.
Why we got rid of it: as fun as it was to tool down long stretches of the highway with, it was NOT fun to drive in stop-and-go traffic, which my husband had to do with it nearly every day on his commute to and from work. Because it's so small and has almost no trunk, people tend to "ride up" on your bumper all the time. Quite a bit of road noise as well.
I would probably buy one again just because I think they're so cute. It just didn't suit our present lifestyle.