[pictures taken from Andy Castro's Dateline Disneyland]
I really like it because it's simple, modern, and much cleaner looking than the pavers. The cement squares seem small enough to make interesting but simplistic. It's already fixed alot of the visual problems I have with Tomorrowland(well...judging from the pictures). I say...please put this stuff throughout Tomorrowland, Disney!
I guess the obvious complaint is that it's "too plain" but I just thought it would be interesting to see everyone's opinion on this.