Cabin 9606 on Brilliance of the Seas

Has anyone stayed in cabin 9606 on Brilliance of the Seas? I see a narrow white space between 9604 and 9606 and am wondering what this is. This cabin is a little further aft than I usually reserve, how stable is this cabin in choppy waters?

The narrow white lines on the deck plans usually are "fire doors"....that's all. Nothing that will bother you!

Has anyone stayed in cabin 9606 on Brilliance of the Seas? I see a narrow white space between 9604 and 9606 and am wondering what this is. This cabin is a little further aft than I usually reserve, how stable is this cabin in choppy waters?

That stateroom is not very far aft, however if you are concerned about motion, I'd also consider moving to a lower deck.

I believe they may be staff stairways. Aft on Brilliance you tend to get some engine exhaust noise. The funnels are to the aft.