Probably OK for boating...
First, the good. These are comfortable, fit true-to-size, and have a decent lacing system that tightens down fairly well. They drain water well, and I would guess that they provide good traction on a boat deck. In fact, as the description describes, they would probably be a good boat shoe.
The bad? If you are planning on using them as an actual water shoe, there could be some problems. Sand easily enters (though the top) but does not easily drain. Even worse, on natural terrain their traction leaves quite a bit to be desired. I tried them for wet-wading a river and will never use them again for this purpose. They have virtually no traction on submerged river rocks, and even poor traction when scrambling on dry rocks on the bank. Be very wary of using these for anything other than boats or flat terrain.
The ugly? Well, I got the red/black ones. Nuf said.