Having taken 8 previous cruises all on Royal Caribbean, the Golden Princess was a huge disappointment.
Let's start with the Cabin, which was located on Deck 8 Forward. On our first day we had a stained comforter, moldy shower curtain, broken sink and broken toilet. The room itself was quite small, there was no love seat which even the smallest Royal Caribbean rooms have. There was a large storage area next to the bathroom, but lacked adequate shelving. Our room came with two extra beds, but unlike Royal Caribbean where they come out of the ceiling, on this ship they're attached to the side of the walls which makes the room even smaller and led to a few bumped heads going to the bathroom in the middle of the night. Underneath the main bed were ladders which prevented us from storing our suit cases there. No towel animals, but you get two pieces of milk chocolate every night.
Sleeping was somewhat difficult. While the room was very quiet, the AC wasn't very strong and the comforter quite warm. But after day 4, we lost AC due to the infamous mussel issue, which made sleep even more difficult. And no AC apparently means no TV either, as the equipment overheats. The TV, when it did work, showed many fairly new movies which was a nice surprise. I'm not sure if this was related to the AC issue, but water temperature was problematic as well, it was either Hot or Cold, always the opposite of what you wanted.