Though the field of vision is tremendous, the goggle pinches my nose enough to where I cannot breathe - and I have a fairly average to large sized head. I figured I would just deal with this, until they began to fog up terribly each day. Went with the I/O's and have been much happier.
Extremely comfortable, lasted two summers of wearing them everyday. My feet seemed to slip around in them quite a bit when they were wet because of the leather, but that seems characteristic of most all sandals I've owned. Best sandals I've had, definitely recommend them.