Took first cruise on RCL's Serenade of the Seas February 26 thru March 5th and it was wonderful! The food was very good and so was the entertainment. I had balcony cabin E1 with balcony #7156 and boy was it smaller than I expected but the balcony was huge had room for lounge chair plus 2 regular chairs and small table. There were plenty of shelves and storage space for 2 people's stuff but room barely big enough for 2 people. We had small love seat that pulled out but would have only been good enough for a small child.
I went with girlfriend so we had beds separated and were comfortable. The balcony made the room very nice definitely would do again. Crew on the ship were very friendly and helpful. Pool bar staff could have been more friendly but overall not bad. Drink prices were high and the get you with the high price drink and keep the glass trick. Make sure you say no fancy glass or you will be paying $10 and up for frozen drink.
Went to St. Thomas, St. Marten, St. Johns/Antigua, Barbados and St. Lucia. All were beautiful and weather, water, etc perfect all 7 days.