I've worn the same pair of NRS Kickers for the last 3 years and they show little signs of wear, though I am a frequent paddler. They are a bit of a struggle to get on if bought to size, but that's actually a good thing as they completely prevent sand and other grit from getting in. They are also quite comfortable. The soles are thick enough to provide a level of security when wading and are grippy enough for secure portaging.
As with any neoprene product they can get smelly, but that can be mostly solved by wearing ankle- high antimicrobial socks and routine washing.