I bought this shoes for a trip to boundary waters (north) I had them in the water all 3 days.
The size run big. I ordered my usual size wide and the shoes were huge.
I really liked an idea of water shoes and while this shoes have a lot of good qualities, negatives for me outweigh positives:
Pros:
Great traction on sole
Water drain holes on the side are great idea with mesh on the side and drain holes water drains fast

Cons:
With mesh water drain out but all the sediment (send, dirt, leaches) stay in. The design of the tightening system still allows sediment to enter on the sides of the ankles
Mesh is rough from inside, and since this shoes are designed to be worn barefoot - this is a major flaw. I had blisters on 3 of the toes.
The back is flexible but hard - so if you need to walk a lot in these shoes the back will rub against the back of the foot creating big blisters
Last con but very important in my case - there is NO arch support.

Bottom line - great idea of the water shoe - keeps your feet water free. Also great traction. But can not be used for long walks