I have used these so far for approaches in the adirondacks, joshua tree, the tetons, and LCC in Utah.
They climb quite well, I climbed all of lower and upper Exum on the grand in these and felt quite confident in them. The fit can really be pulled in tight to feel more like a climbing shoe or kept loose enough to be fairly comfy to climb in. The rubber is quite sticky, and thus wears somewhat quickly. The platform is stiff enough to give support but still give some feel.
Like most people have said they are good for up to about 5 miles with a decent sized pack on. Much more than that they start to make your feet really hurt. Without a pack you could go further. The other issue I have is the toe box is VERY narrow, like a climbing shoe. I have very narrow feet and these still rub the skin off my little toe. I tape my toe if I know I'm going to be in the for a while. These shoes run very warm. I find myself taking them off every few hours just to let my feet cool off a bit.