I've worn these boots at work in the office and hiking in the country.  They have a great Vibram sole that provides excellent grip, even in snowy conditions.  They aren't water-proof, but dry quickly if they get soaked.  The lacing system won't come undone accidentally and the boots are quite comfortable in warm and cold weather.  I've worn them on hikes at temps in the 70s without excess sweating, and I've worn them outside while shoveling snow with temps in the teens and they've stayed warm.  Sock selection helps on this front.

Update: 1/08/2013  I recently took a trip to Disneyland and ended up wearing these boots more than my tennis shoes.  In walking 10 or 12 miles per day, they were just more comfortable than anything else.