This was my husband and I's third cruise with RCI. We stayed in San Juan two days prior to the cruise at the Embassy Suites. This was a great value for the money with free breakfast and a free two hour happy hour every night! We paid around $130/night.
We went to the pier around 11:30 -- and while the long was line, it was also very fast. There were plenty of RCI reps telling you where to go. Tipping the porter is typical - I think we tip $1/bag. From the time we got to the pier to the we stepped foot on the boat was maybe 20 minutes.
The ship is beautiful of course, but after cruising on the Mariner and Liberty, we expected nothing less. The rooms are a bit older and show a little wear and tear compared to the Liberty but Adventure is a much older ship. No real complaints here.