You are low enough to stick an oar out your window and row!
Just kidding. I am almost always on that deck Cat. 1A and all.
I believe you are the equivalence to being between the 2nd and 3rd floor of a building if the water level was the ground floor.
The infirmary and the crew quarters are below you and all of that is above water. At least I know the infirmary is.
It is a nice deck. Easy on and of at port, cabins above you so there is no noise from the promenade, lobby, lido deck or the theater or dining rooms and less movement from the ship. It is a nice deck. My deck of choice.