A very brief review - we stayed at the GH for four nights over Christmas. I used a DSU to upgrade to a Junior Suite on the 14th floor, same level as the lounge.
Room was nice, albeit a little dated. Besides the room we only visited the lounge for breakfast and evening cocktails.
Breakfast was fine, however the made to order eggs tasted a little bland, in our opinion. Evening spread was also OK, nothing special I feel. Had a few types of wine and beer along with a prosecco - only a few warm food selections.
On the other side of the main lounge is a lounge for families with children which I thought was odd when checking in. However given the number of kids running around made sense that they tried to have a separate area (although no one seemed to be using).