From the side it looks ok, from the front it looks bald.
I have gained over 1mpg around town and over 2mpg on the highway (after 1 ful tank of gas). It'll be off for a few weeks, so I'll get a better idea of the fuel efficiency differences.
The bad part is there are 27 or so holes that need to be plugged. 4 of them are large and flush with the roof line, the others are raised up a litle.