My wife and I just completed our European cruise on August 20th, 2015. We had a great time! The Allure of the Seas is a huge ship with over 5,000 guests but it never seemed crowded. The food was the best that we have ever experienced on a cruise. Now, we did eat in the dining room only 1 time and it was good, but the other nights we ate at the specialty restaurants - Giovanni's, Sabor, Chops Grill, and 150 Central Park - and they were outstanding!
The ports of call were very fun as well. We did tours for Naples, Mallorca, and Marseille and were very pleased with them. We did a Royal Caribbean excursion to Florence and that was wonderful as well.
This is a great way to get a taste of Europe and we will likely go and do it again. Very highly recommend.