I had RaceDeck in my last garage. I liked the way it looked and it held up pretty well. My only complaint about it was the noise it made when I walked across it (plastic on concrete). The nice part of it was that it didn't trap moisture underneath it, like the roll out vinyl flooring will.
I've got about 700+ sq. ft. of it in storage that's going back down in a garage as soon as we close on the sale of our current home.
Here's a picture of the old garage.