Could be misremembering, but I thought J-GAF was really down on this one, both fans of MH and jRPG's.
I don't think many people imported it to begin with. Impressions of the game have been really hard to come by in English prior to the localization.
The demo is certainly rather nice, and as far as the Monster Hunter aspect is concerned, Capcom already has done a great job with using the IP to the point where despite the younger audience focus, it's perfectly in-line with the mainline titles in terms of how the monsters themselves are depicted.