I was on the Ocean Princess in May for 15 days with my sister. We booked a suite on Caribe deck- all the Sun class suites are aft- it was super! The balcony and bathroom are enormous and there is a queen size bed and a sofa that makes into a bed in the living room, although not as comfortable as the bedroom you could trade every night?
Lots and lots of room for clothes and "stuff " and lots of little perks you will love!
Go for it, you won't be sorry!