We sailed on Navigator this Feb and were in cabin 1114. Didn't feel much vibration except for one night whern we were "rockin and rollin'". There was A LOT of vibration in La Veranda one lunch when were were pulling out of port, then it stopped. The first night in Compass Rose there was some vibration, but not so much the rest of the week. We had a great cruise, no complaints!
Here are some pics:
http://www.facebook.com/album.php?aid=191481&id=748927173&l=2df9f82921