I guess I should have posted this earlier, but I'm back from a solo cruise on the Grand Celebration (Weds - Friday of last week).
Value: They nailed it here. I think I paid $216 to walk onto the boat for a 2-night cruise. The next cheapest solo option within driving distance of Orlando was over $1000 for 3 nights.
Food: Good enough. The buffet is tiny and has a limited selection, but nothing was actually 'bad'. I ate at the MDR on the first night, and they seated me at a table for 6 with two couples. The MDR appetizer and entree were good. Dessert was a little bland. I cleaned my plate for every meal. There's a burgers and hot dogs/sausages option by the pool, and I was very happy with my cheeseburger and fries. I've had worse food on a cruise ship.
Bars and Stuff: I went over my budget by a few dollars, but looking back -- I seemed to have added additional tips to most of my receipts. The 10 drink coupons for $83 package worked fine. If you pay a few dollars extra for the souvenir glass/cocktail shaker, the coupons still work but your drinks are 22 fl oz. I think I stayed tipsy for 2 days. The drinks are far from weak. The Sports Bar has 11 screens, all in the 40" class. They played a lot of World Cup Football on my cruise.
Stateroom: No complaints. Clean, comfortable bed, the shower had great water pressure and hot water, plenty of storage space for 2 days.
Smoking: Yes, I'm slowly killing myself with cigarettes. I'm almost inclined to think there are TOO MANY places to smoke, but they're all outdoors. I don't gamble, but I couldn't find an ashtray in the casino, which was nice. They could close the smoking section closest to the forward pool/buffet seating area without hurting my feelings.
Check-In: A little bizarre. I think you end up visiting 5 different desks. One to cross your name off a list, then the security area, then a separate place to establish a spending account, then a desk to make dinner arrangements, etc.
Check-out: Slow as molasses. Two customs agents, so the line was long and slow. All parking was valet, and I think it took 30+ minutes to see my car again when I was ready to leave. Parking was $38 for two days, which is comparable to Orlando or Miami.
Entertainment: I was in a bar three times when somebody walked in and started performing. It was good? Not great. I took a nap for the comedy show (by accident) so I missed it. I think they charged $9 extra for the comedy show, which was a little strange. There was a big glow party on the top deck on the first night with a fun DJ. I don't dance, but it was packed with happy people who did. That was actually a fun time.
Ship: It's small, but didn't really feel small. I think my mid-week cruise was half-full, so the ship seemed kind of empty at times. I kind of expected an aging rust-bucket. It was way better than that. If you look closely enough, there are a few areas of the outside decks that are probably held together by dozens of layers of white paint.
Crew: Constantly smiling and visibly pretending to be happy. Helpful and courteous at all times. Third nicest crew I've ever experienced (Celebrity and NCL Escape were both a little better).
Overall: I'd go back in a heartbeat.