I HATE my O2 Cush....with a passion. It hurts to try and use it and it has something to do with the shape of the head.
The Revolution appears to use the same design as the Tantus Goliath - has the same veins in the same places, etc. and feels oh so good.
I'm working on the review for both of these and the Flurry.
But I can't stand the Cush...at all.