Having owned a Dahon Eco 3 2009 for some time now, I find it truly fun to ride for short distances. The bike folds and unfolds quite easily without any problems. The materials used in making the bike are of good quality parts, especially when you consider the reasonable price of the bike. I paid only $299 plus tax for mine at the end of the biking season when it went on sale.
I carry it in the trunk of my car and ride on the streets around my office and home and on paced trails. Dahon Eco 3 is extremely stable and versatile to ride. It has the look and the feel that begs you to take it for a spin even if you are not an avid bicyclist. Just one try will convince you this is not just a toy but a fun bike to own and ride. Anyone less than 6 feet 4 inches can comfortably ride this bike but be sure you don't weigh more than 230 pounds per the manufacturer's specifications. For me, this is another worthy incentive to weigh less than 230 pounds.
Having written on all these nice things about the Eco 3, in my humble opinion, there are a few things every potential buyer needs to know before buying it: This bike is ideal for short distances, say less than 20 miles of non-stop riding on fairly flat grounds. Even the 7-speed is not enough to ease you up a steep grade without you getting winded. While riding your right leg pant bottom tend to get caught on the folding mechanism and can rip your pants. Ripped trousers are not cool when you are to or from or around workplace. Dahon really needs to remedy this flaw for their 2010 models.
Dahon should spec this bike with wireless computer/odometer and an optional shock absorbing saddle for a more comfortable ride.
Would I purchase this bike again? Would I recommend it to friends and contacts? The answers are definitely YES! YES!!