Actually, we found the worst-vibrating suites to be the ones right on the stern. moving forward from there, the vibration tapered off rather quickly to zero in the locations of the laundry rooms. I know, vibration problems can be subjective. But our cat. C horizon suite 784 was like riding a mechanical bull at over 20 knots. So I wakled the halls determining where the vibration stopped. From what I felt, I wouldn't really worry much about Category H.(In fact, we had a cat H guarantee and were upgraded to the C, and I begged them to downgrade us! but the ship was full.)

Thanks,
Richard :) :) :)