I used to ride a folder since part of my commute (11 miles or 16 minutes) is on the Metro train (smaller cars than Amtrak for example) and the folder took up a lot less space. I have the DaHon Curve 8-Speed (internal hub gears), and while I do have to adjust various parts of it occasionally, it's really pretty well made.

Now, however, the Metro has put in "bike cars" which really means they've taken out four sets of seats and set aside an area for bike, strollers and luggage. I rode the folder for awhile after they put in bike cars, but now I ride my normal road bike, use the "bike" space, and am overall much happier with the bike ride part.

So . . . by a folder if you need it for less-space consumption purposes, but (at least in my opinion) the ride won't be as good as your regular (non-folding) bike.

Of course, if you really think about it, a folder takes up just as much space folded or un-folded, its just that it's a less obtrusive space when folded.

Rick / OCRR