We just looked at both the X and the B (bunkhouse) series of Georgetown 3's. I can confirm that it is 30 amp service. Otherwise, as some have pretty much guessed, they seem to be a good cross between a Georgetown and an FR3 with some nice dash additions and bunk options, but no residential fridge options or upgrade packages. There is a standard Arctic pack for keeping tanks above freezing but no double pane windows or other insulation upgrades.
All in all, we liked the floor plan of the 30X3 and the price point is very competitive. I'm not sure it would work for full timers as there is limited storage.