We were in B626 last year. I'm assuming the layout of the room is very similar. We loved the storage space. The bathroom is a little bit cramped. I enjoyed the door opening onto the balcony to let fresh air in but did not spend much time on the balcony itself. It's a little bit cramped feeling.
Our cabin was about the same distance from the stern as yours is from the bow. We did not feel any major motion there.
We were in BC437
There were 3 of us. My daughter slept on a pullman that she found comfortable. I liked the lay-out of the room. When you come in the door, immediately you have a good size closet, 6 decent sized shelves and the bathroom.
Next comes the beds.
This is followed by desk, chair, lounge chair, small table and corner unit with fridge and TV. All this is closest to the balcony door.
The balcony has 2 chairs and a table and we sat out there a lot. Plenty big enough for 2.
No-one can look onto the BAJA balconies from above, you can look over at the Caribe and Dolphin balconies below.
We had the door open all night and loved the sound of the waves.
I found the air-conditioning a bit fierce in the room, so turned it off.
There was no noise from the hallways, and I felt very little of the ship's movement.
I do have some photos of the room, if you want me to send them, let me know.