Enjoyed the Zuiderdam. Had heard many stories of vibrations in the dining room, horrible decor and service, but none of these were on my cruise.
Decor was very European with traditional HAL art and a splash of art deco. I would compare the decor to those that I've seen in Milan or Venice. Service was wonderful overall.
The Vista dining room was excellent. Waitstaff attentive but unobtrusive. Food was actually impressive and delicious. I would like mine a bit more seasoned but with 900 or so people I think it is difficult to please all tastes. Of 15 cruises it was the best food we've had. Wine steward/drink service was great. Although we had rough seas there were no vibrations in the lower Vista dining room. Dry dock must have taken care of the problem.