We have been cruising for several years now on multiple lines. We are very familiar with Port Canaveral and enjoy sailing from there. Embarkation was fast and easy. Probably one of the best in our history. The Sunshine is a large Ship but not a mega ship. Large enough to not feel crowded. She had a major refit in 2012 changing from the Destiny to the Sunshine. My wife and I found her layout different than other ships and a little awkward at first to navigate. As always, our cabin steward was excellent and attentive.
It is a personal opinion that industry wide, I have noticed a slight downward trend in food quality on the various lines. We make a point to dress and eat in the dining room for supper and for most breakfasts. The menu offerings were varied with some new items, but many of the familiar items and favorites seemed to be missing. Also portion sizes have shrunk a little. Not really a huge deal due to the fact that you can order pretty much all you want. We also make a point to try the Specialty options at least once a cruise. Some high points from The sunshine are the Havana Bar and its tastes of Cuba (gratis) and JiJis (15$ per person).
JiJis is an inspired asian dining experience that was so SO worth it. Also I highly recommend trying the Chef's Table experience. It is worth every penny from start to finish. Just come hungry.
A typical interior cabin (185 sq ft) with plenty of stowage for our "stuff" plus my dive gear for a 8 day cruise. Never felt cramped or crowded. the bed was very comfortable (when we were in it). THe only odd part were the recessed spare beds in the ceiling. This was a first for us in several cruises.