Had a most enjoyable two week cruise on the Niew Amsterdam last fall and decided to take a week on the Westerdam this year.
Given the ship is older there were shortcomings in comparison.
We like a relatively quiet cruise experience so HAL fits well with us . Not many "party hearty" types on the ship and not a lot of youngsters.
Our cabin was starboard near the stern, but experienced no vibration and found the location quite handy. Bed was very large and comfortable and the large shower is a definite bonus on HAL ships. Missed the cushion on the faux wicker veranda chair, but the larger HAL balconies are welcome.Drawer space is pretty tight.