These shoes are fantastic. Seriously, Clarks make great quality shoes and this is no different. As other's have mentioned, go a half-size down. In my case, the boots were pretty snug (I'm usually a 10, got a 9.5) but the snugness after a week has become a great fit.

As these shoes wear, they get really nice tones in the leather, likely a quality of the 'beeswax'. I would recommend applying a coat of mink oil, not only to waterproof but to facilitate some texture/two-toned wear along the creases. Overall applying oil does darken the shoe a bit, but it's more of a rich coloring rather than the slightly flat standard, out of the box color. I am very happy that I ordered and applied mink oil day one, and would advise others to do the same.

Lastly, if you live near a Clarks store, definitely stop in and try things on/get advice. They are very knowledgeable (at least the one near me) in leather/suede care.