I'm holding out on seeing the rest of what the ship has to offer as well. I think people are passing judgement on the Icon Class a bit too soon; writing it off as strictly for families. The way I look at it, if all the kids are in Surfside or the Water Park then the rest of the ship will be ours! haha!
Some people are taking issue with so much premium real estate being set aside for families and kids but in my experience with the Oasis Class ships, The Boardwalk & Aquatheatre area at the back of the ship is never really crowded unless a show is going on in the evening. I don't see the loss in turning a relatively dead part of the ship into a family area.
Losing the Solarium stinks, but being they really never enforced the age requirement (in my experiences on the ships) I think the new and improved Aquatheatre will be a nice trade off.