My roommate has a pair of Keen's that she swears by.  Finally, after many miles of mountain biking in Cape Cod this weekend, I was tired of biking in shoes/socks that were sopping wet if I had to jump off in a puddle or if my feet got wet riding through a puddle.  I ordered a pair of Whisper's and a pair of Venice H2's.  The Whisper was a much better fit for my very narrow feet.  The soles are very comfortable and the fit is just the right amount of snugness.  The Venice H2's seem cluncky and sloppy in comparison, although I wish the Whisper had as much "open space" between the straps.ceramic

I typically wear a size 7.5, but after reading the reviews here, I ordered an 8.  Again, I have a very narrow foot with a high arch, and these fit me like a dream.  I will update this review after I've broken them in a little more.

As a side note, I ordered the Dark Shadow/Ceramic color and found that I didn't like the color combination, so I'm returning the first pair and ordering a different color.