Mike at Country Pleasures fitted me out with some new Riversheds as few weeks ago, and so far, two thumbs up. Wore them all last weekend on the the Dogpound and LRD, and gotta say, they are my new best friends. Lots of high ankle support, and I have the cleat kit standing by to put in if I encounter slime. So far have not needed the cleats, however. The super stiff sole took a bit to get used to.
One heads up I got from Mike, the 'StreamTread' sole on the Rivershed is soft Vibram. It's tough, but if your walking miles and miles on very hot pavement or asphalt, it could lead to premature wear. So avoid such use, walk on the sides of such pathways on really hot days.