We're on the new Royal Princess, August 24th. Barcelona to Athens - Can't wait!! We've never sailed on anything so small - should be a different experience!
There are only a couple amenities that you won't find. Thre's no "Anytime Dining" and there are no dedicated facilities for children. On my cruise to "French Polynesia and Samoa" aboard sister MV Tahitian Princess, they used the card room for the youth/teen program with the unfortunate consequence that bridge (only informal -- there were no bridge directors in spite of four full days and two additional afternoons at sea on a ten day cruise) got relegated to the library, which was not exactly set up for it. There's also only one show room, so you won't have a choice of shows. Everything else is smaller, but there -- including two specialty restaurants, Sabatini's and Sterling Steakhouse, one deck above the buffet area.