We really enjoyed our cruise, but we didn't notice much better service for a suite than if we were in a regular cabin. If you don't need the space, not worth the extra money. However, we have two small children (4 and 2) and my wife is expecting, so we picked the cheapest cabin with two seperate rooms. A suite was a little more than booking two adjoining rooms, so we went for the suite. Would probably do it again.
Like many folks, we found the food to be just average, with not as much choice as the other RCL ships we sailed in the past. However, we focus more on the healthy choices, so after the first day, we were able to find places around the ship that had what we wanted. Windjammer if you want it fast and in mass quantities, only ate there for breakfast once and lunch once. Was just OK quality, less choice than the other ships. We ate at the speciality restaurants two nights and for a couple lunches. Here's where they keep the good food and better service. Dinner in the dining room was good, not great. The service was just average.
Dinner in the 150 central park lived up to its billing. Have had similar meals elsewhere (France, Germany, Japan, etc.). Equalled what you would find at a true michelin stared place.
Awesome balcony. 270 degree view. Room for 8 to dine. We ate breakfast every morning there. With the suite, they will deliver everything you can get in the regular restaurants, plus you can have eggs cooked to order. Plenty of space for 8, three seperate rooms, so can get privacy, if you want it. You can watch the shows from your balcony and enjoy a drink and a snack, just like box seats. Only issue: they have an incinerator on board that burns the trash so soot falls on the back of the ship, washes out of clothes, but don't wear your nice clothes out on the balcony. We read about it online before sailing, so weren't surprised. They can't do anything about it, so if anyone says they will fix it, they don't know what they are talking about. They would have to replace the incinerator, so won't happen until the retrofit in about five years or so. BTW this is also an issue on the boardwalk, sport area, and aquatheather, so be careful with your Don Johnson white suit!