I bought these to replace a pair of Keen Bidwell slip-ons that I like, but I was noticing some heel cosmetic damage, so I needed something nicer.  These have memory footbed that was comfortable right out of the box, nice wide toe with slightly smaller toegard (still functional, but looks nicer) and a little nicer sole from dress perspective.  Best of all, they are a little lighter than the Bidwells.  I tried them on and they felt pretty good.  So I wore them for a couple days, no real break-in needed, and felt good enough about them by the third day to wear them on a business trip where they served me well.  My feet sometimes swell a bit on flights due to kidney problems, but even with that these were very comfortable.  I typically wear a 10D, which is what I ordered, it was comfortable, maybe slightly looser due to wearing light travel sox, but felt pretty true to size.  Also, I did not have any problems with heel folding over, etc.  I used a shoehorn or fingers to slide shoe on, but really had no problems.  Theses are great shoes and I will likely buy them in the future when this pair wears out.