We enjoyed the newly upgraded (January 2012) Summit very much. As always, their gourmet specialty restaurant, Normandie, was top notch. We ate there three times ... in fact, we were offered a free dinner by Celebrity for the first evening as we were staying in a suite. The other two times we paid the $40 surcharge. We also had lunch one day at the new crepe restaurant ... also a hit. My husband and I even tried Qzine (also $40 each) ... but it wasn't our favorite and would not go back. Some of Qzine's items were tasty .. some not. For $40 we decided we very much preferred the Normandie.
On the other evenings we had reservations for dinner in the main dining room for 7:30 (dine as you wish). That dining room was very hectic and on the last formal night our reservation was messed up and we had to wait quite a while ... everyone seemed very confused. Give me the old regular time dining.
This particular Southern Caribbean cruise had five stops ... four in a row, then a sea day and one more port. On the fourth day we were very tired and really looking forward to our day at sea.
On St. Croix we did the Buck Island snorkeling through the cruiseship ... a little disappointed the coral was not colorful at all and the water was a bit rough. Still, glad we can cross that off our "bucket list." In St. Kitt's we took a taxi to the Marriott ... beautiful facility and nice beach, though some seaweed. Very nice day.
In Grenada we hired Chris Buckmire (can be found on the internet) ... very nice guy and very nice tour. Really enjoyed Grenada ... don't forget to buy spices!
On Dominica we also hired a driver through Woody's Dominica Tours ... we got his assistant as he himself was already booked. Very nice tour (though driving in Dominica is tough) ... I suggest for Woody's tours you just have two or three people or you may have to sit in the back of the 4x4 in the open air. The best part was we went to a beach at the end of the tour that only 4x4s can get in to ... we had it all to ourselves! Beautiful! Should have asked to go there sooner!
On St. Thomas we booked through Celebrity the Catamaran Champagne Snorkel trip. We have done this two or three times before ... great trip with beautiful scenery. They stop at St. John's for snorkeling (actually better than Buck Island!) and there's a little beach you can sit on. Very first-class excursion and worth the money.
Overall, very pleased with the upgrades to the ship. Our Celebrity class suites now have a balcony (added in January) ... nice room with butler service! One article I read about a year ago said the Summit was going to get the Tuscan Grille ... which it did not. I think I would prefer that to Qzine. (But our friends liked Qzine ... so I guess it's up to your own taste.)
One thing I don't like is that the suite guests don't really get a lot of perks like they do on Holland America. But ... lovely time, and, yes, I would go on Summit again. Hope this helps.