I've been on about 7 cruises, Carnival and Princess only. This was my second Princess. The first was Alaska on Sapphire three years ago. I will list some key points to consider.
Do not stay on Emerald Deck 8 if you have ears. I specifically asked about any issues with this area of the ship and the Princess agent, Ann Butler, who booked the cruise for me assured me there might be some bumpiness back there or engine sound but that's it. My elderly mother, who is almost deaf, could hear the thumping bass coming from the Universe Lounge below. until 4 in the morning a few nights!! Just be honest Ann, and let me make an informed decision!
I also inquired as to whether the ships ever get bedbugs and she acted like I was stupid and said no!! Well, I found out they had an outbreak on the Coral Princess only a few weeks earlier! Of course they can get bedbugs, I realized. The issue came up after being in Panama when everyone was getting bit by mosquitoes. The best hotels get these, just be honest with me. Someone said maybe she didn't know. She bragged she knew a lot, having worked there 5 years, so she must have heard about it at some point before.
Universe Lounge NOISE!! love the location close to aft deck
noisy cabin steward right outside our door every morning, rustling plastic bags for 20 minutes