We did R/T Barcelona for 3 weeks or 3 cycles. This ship had people boarding at Barcelona, Rome, Athens (and some at Crete). The cruise had wonderful ports (maybe too many!) and we had a beautiful Eastern and Western Mediterranean trip. Ship was new, clean, lots of amenities, nice staff, little ship movement (even sailing in lots of wind) and generally a wonderful floating hotel from great port to great port. Tons of places to relax on board, but we like our balcony.
We had a veranda cabin on Deck 10 forward, so no view of lifeboats, and even though there were some days with lots of wind, the stability of the ship was impressive. We have cruised recently and over the years on other lines, and this was an excellent overall experience. We enjoy the layout of the bathroom/dressing area on Princess - where there is a big open closet/shelf area just outside the bathroom and separated from the rest of the cabin. There is no little sofa, but a nice desk/dressing area opposite a bar/fridge counter. Very convenient.
(One slight but persistent annoyance: the dressing area has a motion-sensor ceiling light, which is VERY bright. If you have to go to the bathroom during the night, it is painfully blinding and can wake up your cabin-mate. Every night this was bothersome at least 1-2 times. I wished I had masking tape - or even one of those rubber "thimbles" for collating papers - to cover up the little motion sensor button on the light fixture. Keep that in mind if such a thing would bother you. I ended up wearing a sleeping mask sometimes, but still it was literally painful when approaching the bathroom - especially with the extra-darkness of the mask. Plus it would time out after a minute or two, meaning you have to turn on the bathroom light anyway. No night light. This is a miss, in my opinion.)