I gave the shoe 5 stars even though I'm sending mine back. It's a beautiful shoe, very well made, nice coppery-bronze color, and very stylish. But I have a problem with the ankle strap, it's pressing on a part of my ankle and caused too much discomfort just walking a few steps during my try-on. It's possible that it would loosen after a while but I'm not able to wait to find out. Don't let this stop you from ordering this sandal, everybody's feet and ankles are a little different and for some the strap might be just fine.
I'm usually a 6.5, sometimes I wear a 6 in an open-toed sandal. I ordered the Oasis in 6.5 and it seems a little bit small, so consider going 1/2 size up.
The strap over the foot isn't very snug, but that could be a positive because then there's room for toe petals or whatever pad you like to use.