I had one laced to a 26" wheel. Built a frankenbike with it, mostly like a mountain bike. Didn't know much about bicycles then. Rode trails, roads, about 150 miles total. Decided it was too damn heavy and expensive and I sold it.
Now I know waaaaayyy more about bikes and I kinda wish I hadn't sold it. The hub has some serious merits. I don't think that hub would ever fail. Ever. The ratio range and operation are sweet. If you can deal with the weight of that thing I don't think there is a better hub.
AllenG has a bike with one and he likes it.