I have owned these boots in brown for two months now and I wear them almost every day. They are fabulous. I usually wear a 7.5, sometimes 8 depending on the shoe -- I ordered a 7.5 and when they came I was worried they might be too small, but after wearing them for several days and breaking them in, that was the perfect size for me.

Pros:
-Waterproof! I haven't jumped in any puddles yet, but I have shoveled snow twice now in these boots and both times I have come inside completely dry. My toes did get a little cold because these are not very insulated around the toe, but I have enough room for a thicker sock so that is not a big problem.
-Comfortable. These don't have a lot of give around the ankle, and the first week or so, as I was breaking them in, the folds created around the ankle from walking were hurting quite a bit. I was worried that was a permanent problem, but I just suffered through it and now that they are broken in I have no complaints. The arch support isn't amazing, but I have high arches and usually have to wear insoles to get complete support.
-Fashionable. These look great tucked into jeans or with a casual skirt. Overall an excellent winter out-and-about boot.

Cons:
One day I was walking into a store and noticed what looked like some dark grease drips that had soaked into the top of one of the feet. I have no idea where they came from (maybe from a dripping gas pump?), but I took the boots into a cobbler and he resprayed them and they came back looking as good as new. Anyway, I don't know how something waterproof got grease leaked into it, but at least it was fixable.

I plan to wear these for a long time, and I'm thinking about getting a pair in black. If you are looking for a practical but fashionable winter boot, don't hesitate!

UPDATE December 2012:
I have now owned these for a year and stand by my 5 star review. They have held up wonderfully. They are still completely waterproof and they look great. I shovel snow in them regularly and they always keep me dry. They are still very comfortable. I always get compliments on them.