I disagree in that it is just as nice as the GF, but agree it's not as well known. But it's not as well known not because of the hotels itself, but the park(s) they're associated with.
Which brings me to my next point in that GF has it's image because its the closest hotel to MK; without MK, GF would be just like any other Disney luxury hotel.
My views exactly until the RPR room refresh, now its higher up in my mind than Hard Rock.