Harmony is my favorite ship on on the water that I've tried! I also loved the Oasis but they didn't have water slides or the Abyss dry slide (10 stories and the absolute best ride of my life!) I loved the pools and water slides, splash pad, stage shows, Aqua Theater shows, ice skating (and ice skating shows), zip lining, wake boarding, rock climbing, etc. They even had an escape room (for a charge.....really wish we would have done this but it booked up quickly). We also loved watching the robotic bartenders mix drinks and sitting in the bar that goes up and down between floors (Rising Tides Bar?) They also had 3D movies, outdoor movies by the pool at night, and good comedians. I loved sitting in Central Park at night listing to a string quartet or other musician playing. If you book a suite, they also allow you into the Coastal Kitchen at night which serves free alcoholic beverages (if you're into that) and a wonderful quiet meal. We had an amazing dinner one night at the Chef's table and also tried Wonderland (weird but delicious molecular gastronomy food) served by waiters in purple velvet jackets with tails (Super Fun!) My daughter loved Face Painting and riding the carousel on the Boardwalk in the mornings... (heck, I rode the carousel with her). I had a 2nd Harmony cruise cancelled last year due to the pandemic and rebooked for this summer for an Alaskan cruise..... which is also cancelled. Darn, I really miss cruising!!!