Spent 10 nights on Seranade. Been on over 25 RCCL cruises and I found the Seranade to be very quaint compared to the mega ships. You get a better chance to interact with the ships staff. There is actually more space per person than on the mega ships. Seranade has a giant Schooners bar and a useable Safari lounge.
Cabins a bit small but this is an older ship. The casino was a bit dated and not busy. They should have $5 black jack tables but none to be seen.
The food was above average for RCCL in the main dining room. If you want better food go on a higher end cruise line. Park Avenue disappointing but Chops was good.
Smaller cabin with balcony. Partial obstruction due to life boat below.
Poor island and went to a decent beach.
Decent view of the waterfalls.
Nice beaches.
Shopping and Moho beach.