I've just started wearing these and they aren't going to get a lot of action over the next few months- buying sandals in October in Minnesota isn't optimal timing for getting in a lot of reps. That said, my experience so far is that they are comfortable for walking, the cord between my toes will take a little getting used to and as I wear them more, I will need to make adjustments on the straps but I like them!

I originally needed a sandal to walk across lava and razor sharp eroded limestone fields to get to the ocean with my heavy dive gear. And then take them off and swim with the sandals and walk out somewhere else. The strap system is vastly superior to web strap competitors, and when snugged down in "sport mode" keep your feet from rolling or slipping out of the sandal on uneven sharp ground and protect your toes and the side of your feet from being savaged by the terrain. They are light and pack nearly flat, so easy to travel with. The Pro improvement got rid of the old velcro backstraps which fell apart, and with the new straps set loose and in "slide" mode, you can easily flip these flips on and off around the house and beach.