Hi, I have been on a couple of P&O cruises to the Med and the Canaries and found them great. Bonus for me was that they left from Southampton so there was no flying involved, just a train journey from Aberdeen which I found really relaxing. On the ship the disabled cabin was huge with a massive wet room. The whole ship was geared up for disabled people and the staff couldn’t have been more helpful. I was in my wheelchair most of the time and found getting around really easy, even getting off the ship when we were in port was well handled by the crew. As for the formal dining, we ate in the dining room most nights but as there were about 10 restaurants on the ship there were lots of choices. Even on the occasions we were in the dining room I sometimes had my jeans on. There were 4 optional formal nights during the 2 weeks and we went to a couple just to give my Kilt an airing although being a true scotsman that wasnt all that got an airing. Bottom line is go for it. It is a holiday that gives lots of options, you visit different countries and unpack once. What a boost.