Great review!! We too had a chance to stay at the GF in April 2010 and I can definetly say it was my favorite Disney vacation to date. I can totally agree with the worry that you will be out of place, but in the end you are not. Specifically, we traveled in April and we saw at least as many, if not more families with children compared to couples and all-adult families there.
But in the end I think that "stuck up" worry by many did turn out to be an advantage for us. Even though we were there in the peak of spring break, the pools, restaurants and common areas of the resort never seemed overly crowded. Our monorail station was never crowded nor our bus stops at any of the parks. Our DME bus was full, but us and one other family were the only ones staying at the GF.
Specifically we were in Boca Chica 8408 - with a view just slightly left of yours, probably one floor down.
Only a few gripes (some the same as yours):
1) Service vehicles. From what I've seen, there really is no "behind the scenes" area so they are *constantly* around on the pathways, which are also guest walkways. It got to the point that I looked as if I was crossing a street whenever I walked near one because there always seemed to be a cart coming from somewhere. They seem to do everything - transport guests if needed, transport housekeepers, matinence equipment.
2) Gasparilla. I was always quite fond of the All Star-esque food court but the GF's does not live up. The food choices were OK, but not overly varied. The indoor seating was small and seemed overly hectic with people constantly going in-out and with the few kids arcade games in there. So much so that we only ate for breakfast there once, and went to the Poly for Kona/Capt. Cooks the rest of the days for breakfast. Great idea trying to incorporate a "grab-n-go" food court even into the GF, but I don't think it really is *that* good. The one thing I really liked was the frozen dessert (ice cream?) from the machine
3) Room at check in. Maybe we were just unlucky (or it was just a huge check in day) but our room took forever to be ready. Keeping in mind we did not arrive until 2 pm that day (If you are curious, look up JetBlue flight 507 (April 13 2009)) I was surprised that it wasn't ready, but a bit frustrated when it still wasn't ready at 3 after eating lunch. In the end we found outdoor restrooms and went to the pool so it wasn't a big deal, but I'd say either Boca Chica rooms are made up last, there was a shortage of mousekeepers that day, just bad luck, or a comination of the few that made the wait so long.
My guess is we won't be going back to GF this upcoming spring. The price is a bit much for us. Paying for only three nights out of five, I think it was a good deal but I would have a hard time paying $600 x 5 nights = $3000 just for the rooms!