I replaced a 2 year old pair of Saucony TR2 with these. At the same size, they fit just as well as the older pair. Very comfortable while running, working out or just for daily use, with little break-in time needed. Compared to other brands, they seem to fit about a half-size lower.. that is, if in doubt, I would err on the side of choosing a smaller size.

UPDATE: After 7 months, the bottom of the heel part of the shoes is starting to "peel" in the layer between the colors. I wear them regularly and when running, but not every day. The TR2s, which I still have - didn't do that even after 2 years. These, the TR6s still fit perfectly, are comfortable and look good, but they are wearing faster than the older model.