I have ridden mine for up to 75 miles and have been very comfortable in them. I wear them on a week long bike tour every year where we typically do about 400 miles. I even race triathlons in them (I got some grief from some of my friends because they are so clunky and heavy- but really- my body is more overweight than my shoes).
I even wear them in winter with 2 pairs of wool socks.

True, not as stiff at my Sidis, but WAAAAYYYYY more comfy!!!

I actually had to use the Dremel to cut the shoe away a little so I could unclip- there didn't seem to be much room for that foot to move and unclip. Since I did that I've never had a problem. And last weekend when my friend had mechanical issues and we had to walk our bikes 3 miles up a gravel road- I was so glad I was in my Keens and not in my regular road shoes like her.