We have cruised on Holland America - can't find any fault there - our friends have cruised with Princess - also could not find any fault.
MSC Musica was an experience that we would not want to repeat. The ship was fine, our cabin was good and our cabin steward, Ina, and our waiter Sugi were the only crew members who went out of his way to make us feel welcome on the ship.
In the 13 night cruise, we only had two meals that were hot. The others were room temperature or less.
Out table in the dining room was tucked away in the corner and the waiter could not get around and had to reach across the table to serve us.
If one got up the nerve to ask one of the staff a question, you almost felt as if they were sneering at you and would barely acknowledge your question.
At one point we observed a senior crew member giving a drinks server a major dressing down. What an uncomfortable feeling that was! That should be done quietly away from the guests as a common courtesy for all.
We gave up on the buffet as it was so crowded it was hard to find a place to sit. Ever had cold fried eggs and toast that was prepared hours before breakfast? - that is a treat you certainly want to miss. Even eating breakfast and lunch in the dining room left a lot to be desired.
Unless your cabin was on the top three levels, you were barred from dining in Le Maxims, even though we were informed prior to sailing that we could reserve in this specialty restaurant if we desired.
The one saving factor were the drinks. Tried every cocktail, except the premium ones, on the list.
One thing that was well done was the embarkation. Disembarkation was another story, a real nightmare. Sat in the lounge for over two hours waiting to leave the ship.