We sailed on the Golden Princess from March 28th - April 11th, and were booked in a Mini Suite on the Dolphin Deck (AA Category), midship.
We arrived in LA the day before and stayed at a hotel near the airport. It was only a 30 minute trip to San Pedro so you really don't have to stay in that area if you don't want to. It also gives you more of an opportunity to see all that the LA area has to offer before you embark on your cruise.
Check-In/Embarkation: We arrived at the port just shortly after 12:15. Princess moved us through the process pretty quickly and efficiently. There was a short delay of about 30 minutes while we waited for our seated pre-boarding section to be called, but once we were called to board, the process through security went very quickly and we were on-board checking out our stateroom by 1:00.
Dolphin Deck D415. Adequate closet space. Bathroom good size. Quiet area, mid-ship, great access to all areas. Balcony not covered but all right. Felt much less movement of the ship being on Deck 9 and mid-ship.