This was our 4th cruise with Cunard (two each on QE2 and QM2), previously sailing on Holland America (4), Disney (3), Princess (2), Royal Carribean (2) and Celebrity (1).
Overall, the ship's staff is very friendly and do everything they can to meet your expectations. The public rooms such as the Queen's Room and Illuminations for the planetarium are absolutely beautiful. The corridors are all so wide and grand. There is really nothing else to compare.
Some cruisers we encountered seemed to think that they were the only passengers. Very demanding. The staff are doing their best. I still think Cunard have set themselves up for unnecessary criticism because through their marketing, the standard and expectations are set so high that passengers get upset or angry when everything is not perfect. We have sailed on a number of cruise lines and therefore have a basis to compare our experiences. Overall, attention to detail is still lacking on QM2.
Small for A1 deluxe balcony. No tub. Old style TV - no flat screen.