We are going on eastbound Lisbon/Douro/Madrid next year and picking a cabin on the Andorinha. All the cat 5s are sold out from April - June. Are there any negatives to Cat 4 in the back of Diamond Deck? These cabins are underneath Arthurs so I wonder if there is noise from the raising and lowering of Arthurs than might negatively affect these cabins, or anything else I'm not thinking about. If I pick a Cat 3 instead, is there a "better" side of the ship heading eastbound? Any other advice is welcome, although I am particularly interested to hear from those who have been on this ship. I have sailed on the Savor and Grace previously. Thank you.