We were in a Neptune suite on the Westerdam, Oct 2023 and I use a wheelchair. As long as you don't have a wide (more than 22") wheelchair you will be fine. There is one door on the port and starboard side that has handicap access to the walking deck, unfortunately it was out of service quite often. As for going to the PG, very easy, they still seat you where available or at your convenience. MDR will also seat you as convenient, since many times the table are pretty close. Overall no issues with wheelchair. It provides me with the ability to still travel. HAL is very accommodating to people who mobility issues. As for service in PG, we did have the understaffing issue and people just standing and not paying attention, we sent a note thru "let us know", and the next day service was improved, there were additional staff. Unfortunately, we can expect understaffing everywhere on the ship.