Dene,
My comment about the head, was based on it appeared that the head itself was on a platform, then the slope (about 45 degrees) of the hull and a flat floor. If the entire floor is flat, it makes things easier. If there is significant sloping floor between the head platform and the foot platform, it makes use difficult.
In the CD 25, there is less headroom in the head than in the Tom cat 255. The hump in the roof in the 25 is closer to where your head is, and for someone who is 6'2" as I am, it makes standing more difficult.