Very well done, but a bit overboard, in my opinion. I never had a problem with the original "slow" scene. I thought Adywan did a great job speeding it up a little bit and adding the music from the prequels to tie it in a bit without entirely reinventing the scene.
I always liked the idea that Vader and Obi Wan became less "showy" in their fighting styles and got back to basics. It was more like a chess match than an MMA fight.
My two cents,
Magnoli