Yes: The deck 5 suites are one room and the other decks have a separated area from the living and sleeping areas. However, the balcony is as large, or larger, than the other decks.
If you want a decent suite, for two people, with a great balcony, at a lower price then go for the Junior Suite. It is still a nice cabin and you will enjoy the benefits of an aft suite at a lesser price.
Take care,
Mike