Sorry to hear you cancelled your "Z" sailing! I was on her in May, and had a fabulous time (Western Caribbean - not my favorite, but the price was right, and the cruise was wonderful!). I was seated on the lower floor of the dining room, and - yes - the vibration was very noticeable! However, our table for 8 "clicked" immediately, and we were so absorbed in talking and getting to know each other, that the vibration became a non-issue, and was hardly mentioned after the first night or two. I thought the food was excellent (Mike Mahn was the chef), and the service impeccable - as usual. The only problem I had was the Queen's Lounge (a disco converted into a movie theater) because the booths/chairs were very uncomfortable, and unless you sat right in the front, you couldn't see the movie screen, as the floor was flat rather than inclined. But - I'd sail on her again in a minute!! As large as she is, there were only 1800 passengers, (compared to the 3000 on other comparable ships) and I never waited in a line more than 5 minutes, and that was basically for tendering to Grand Cayman and HMC (I forced myself to get up early for early tender tickets). The Lido was wonderful - didn't do the Odyssey on this trip. I particularly liked the specialty coffee bar (can't remember the name). I also like the way the shops were laid out - they just kind of flow from one to another. Hopefully, you'll reconsider and sail her in the future! I've been on eight different druise lines, and HAL and Celebrity are my favorites. I love HAL, and have booked the Veendam over Christmas.