I just got the water tennies, but only had a few days to test them out... They seem like a great creekin' shoe, very sturdy, and they look like they will be more durable than my nemos were.
One thing to note is that the take up a lot of room in the boat because the have pretty substantial soles. I had to cut out some foam from the pillar in my gus to make them fit, which was not necessary for the nemos.
They seem very supportive and good for long hikes, and the rubber is definitely sticky. I think they run small, as I wear a 42.5, which fits perfectly, whereas my normal size would be a 44. I wouldn't worry about the buckles catching, but these shoes are not the easiest to get on and off.