These may be the most comfortable shoes I own. I love them.
Almost no break in time is required and the toe beds are large enough to feel comfortable for hours of walking.  The laces are not too good, they tend to come untied way too often, but the shoes are fantastic. If you can get away with a semiformal shoe for work or just want something to kick around in on the weekends, try a pair on. I am seriously thinking about getting a second pair of the Keen slip ons for travel.