Cruised many times and have accepted that "quality" is not available today, cut backs rule. And I am guessing the cruise industry doesn't care, whichever cruise line. Sailed most of them and one can be good in one area and another in others, finding the near perfect cruise is a mission.
P&O Arcadia is comfortable. 5% of crew/staff were amazing. Cruise director dismal and really should let the younger more appealing crew take over. Dining was hit and miss. Food was okay, edible most of the time. Excellent restaurant manager always polite and service minded. Some days a star waiter arrived and you thought, "YES" then it was back to the shambles waiting staff. We paid extra for the East and MP restaurants, why? more bowing and is everything alright? East we thought was a disaster.
Saw a few shows we thought the theatre was very well designed with great lighting and scene design.