Tara: Splendour OTS is part of the Vision class of ships for RCI. It's about 10 years old, and back then, RCI was building ships to put as many passengers on board as possible for the ship size of that time. In only 10 years, ships are now twice that size! That said, the inside staterooms of the Vision class ships are on the small size. Not unmanageble mind you, just small. As a comparison: I think the inside cabins on Princess' Grand Princess are the most poorly laid out cabins at 160 sq feet. They're very difficult to get around in.
Check out this link to view your cabin on Splendour: http://www.royalcaribbean.com/findac...=R&deckCode=BD
There is a vanity, albeit somewhat small. You will love the look and feel of the Splendour OTS. I've not been on her personally, but have been on two of her sisters, Grandeur OTS and Vision OTS. Very well laid out and easy to navigate your way around. As with all RCI ships, they have a 2-dimensional ship map at elevator lobbies to assist you.
Good luck, Steve