As mentioned in other Cobian sandal reviews, I love these and they are my favorite brand. I have not only tried most other beach sandal type brands, but most of the Cobian line up, and these are by far my favorite. They have great traction both on the bottom and for your foot (I hate when my foot slips), they drain the water like non I have seen (hence the Draino name). They are also extremely comfortable, which for the price point of only $35 is a steal.
The only negative thing I can say is that they do seem to wear on the bottom much quicker than they should. I think they are more comfortable than other brands because they use a softer rubber but it also wears faster so thats the down side. Otherwise these would be a 10 out of 10