Since we're from the UK, we flew from London to Barcelona (booked our own tickets). We were travelling with friends. The taxi from BCN to the harbour was about 20 minutes and I think it cost about €30. From there, we checked in - queued for about 20 minutes which we haven't had before, but were soon on board.
We had nice rooms - 1252 and 1260, room review below. The concierge room is a nice touch with free alcoholic drinks (thr only one's you'll find on board!) and nibbles in early evening. The concierge herself - I think it was Vanessa, was superb, giving us lots of useful advice and booking restaurants.
Food on board was generally of a high standard. Main restaurant was very good, as was the speciality restaurant and Jonny Rockets. The buffet was so so, and there was always trouble getting a table. The outdoor areas seemed really busy all the times (except when in port)although there were hardly any kids on board (it was during term time). The seating areas reserved for the suites is a nice touch.
All the bar staff were fun - in fact ALL the staff were excellent - RCI clearly spend time and money on training. We always felt we were special! Tried my luck in the casino (and won several hundred dollars!)one evening. Also visited the nightclub on a couple of occasions - we made a request to the DJ, but never heard the song. Went back to the DJ booth later, to find it completely empty - they were playing a cd of a pre-mixed selection of songs!!
Overall, this is a huge ship with plenty to do. In fact, in five nights, we never saw a show, and never saw the ice skating rink. Adventure is an older ship, and I'd like to try one of the newer ships next. RCI have a good offering, the headline price was reasonable (about $2,700 for the two of us), but drinks are expensive - we ran up a $1,000 bill quite easily (cheap wine was nearly $50 a bottle after Spanish tax and 15% gratuity).