Well, Urbane Cyclist is a good bike shop - and the only BF dealer in the area. I also commute to an office in Toronto and I looked at BF, Dahon, and Brompton before making a decision. I ended up with a Brompton but was skeptical about the small wheels as I also have some rough areas I bike over. I am now a convert and dont believe the small wheels are a hinderance.
Throughout the winter, the Brompton does develop squeaks as well which have only required some oil to fix (up till now) - winter has a way of destroying bikes quickly. The only build quality issue I had was the rubber stopper at the end of the seatpost (prevents rolling when folded) was much too loose for very cold weather from the factory - one very cold morning it fell out and luckily enough I noticed.