Normal
Out of 19 cruises, I have experienced some of the kind of movement that Mikesteg has described. It has been however, the exception rather than the rule. Most of the newer ships that I have been on had little or no vibration, but the pitch and roll has only been evident in relatively rough seas. The speed of the ship will also have an effect; the faster she is moving, the more she is likely to pitch and roll. As previously mentioned, cabins on lower decks amidships experience the least amount of movement.
