We sail with HAL exclusively b/c it is so accessible.
My DH uses a power wheelchair.
We have sailed on the Oosterdam and Westerdam [and twice on the Zuiderdam] and we have had VAs -- 6003 and 6004.
We also had an SS once, on the Zuiderdam, and did not like it. The size was great, but the configuration of the bathroom was not.
My DH did not like the shower being with the toilet -- everything got soaked, and I was always mopping the floor.
[When you close the shower curtain, you and the toilet are on the same side!]