At the beginning of 2012, I bought these in the "potting soil" color and I wear them all the time. They didn't need any breaking in at all. They look great and surprisingly they don't look big on my feet, which I would have expected for shoes with such a generous toe box. Normally I wear a size 10 and once in awhile a 9.5.  For this shoe, I got a 9.5.

It's so hard to find slip-on shoes that don't slip off your heels when you walk, don't rub your heels and are supportive and comfortable to wear for long periods.  These are a real find.

I see that one reviewer says they run small and are stiff and hard to get on.  They are quite stiff at first, which affects how easy they are to get on in the beginning---though note that that doesn't at all affect how comfortable they are once you do get them on, and they become easy to get on after a little wear.  I think it may be that the difficulty she had in getting them on may have led to her perception that they run small, because I wouldn't say they run small at all.

UPDATE April 2014:

I've been wearing these shoes for over two years now, and I'm still crazy about them.  I bought a black pair as well, later in 2012, and I'm equally happy with them.  I get compliments on these shoes all the time.

UPDATE January 2016

Still enjoying these shoes!  Minimal signs of wear.