From the picture it looks like a
Classic design, this would be an easier boat to get in and out of from the stern, than a sundeck.
I will remind you that a boat is a series of compromises, give here, take there. IF you are going to spend a lot of time
diving and using the boat for that then of course you want good access.
We have a Albin 43' Sundeck which because of where we keep the dingy, on the swim platform blocking the ladder, we get on the boat while swimming using a ladder on the port side
deck entry (we also use this ladder while in our slip with a fixed dock).
IF you want to consider your wifes comfort (your FIRST point) then this boat would meet those needs (there is a lot of living space and good size master stateroom) and you'd make modifications to meet other needs.
Keep looking, it's part of the fun, and you'll find your boat.
Good luck.