Touch cold in the winter - but only getting too/from the hot springs. Perfect once you're in. Great for everything else. Perfect for spending days on the river. Or backpacking, or climbing, or well, the list goes on. Fits true to size and lasts!
Shoe seems to hold up well, but it did give me blisters on multiple occasions as I tried to break them in/get my feet to behave. Very little wear on sole for number of miles I put on them. Tends to feel pretty warm in the heat.