I bought these to replace a pair of Tevas that saw hard use over almost ten years and finally fell apart.

These are a worthy replacement.  I saw a number of comments about the heel pad, general comfort, and adjustability, and I honestly can't imagine that these people are reviewing the same product that I bought.  My foot fits wonderfully in the sandal, and the first time I had them on, I wore them for a long outing: driving an hour, walking around for about four hours, then drove an hour home.  I had no trouble with the heel cap digging into my foot  (I even tried several positions to see if I could make it do so), and I had no chafing from the connecting ring (which has a cloth pad under it, and they fit snugly after a couple of tries at adjusting the straps.  My only guess is that people are buying them a half size too small.

I'd recommend these to anyone who needs an excellent, durable pair of sport sandals.

EDIT:  I finally figured out why people are complaining about the connecting ring on the straps.  I recently wore these on a hike -- an honest to god hike, for which I was too lazy to put on my hiking boots.  On very rugged terrain, the ring did hit the malleus painfully when the sandal twisted on my foot.  I was mostly ably to fix this by cranking down on te straps, but the lesson learned is that these are not a good substitute for hiking boots.... nor are they intended to be.