I think it really depends on what kind of cruiser you are. If you're out all night, at the pool all day, on shore at every port, a mini-suite probably won't be worth the $$ to you.
If your main destination is the ship, you'll love the Princess mini's
Dave & Dianne, did you go to the photo department and ask if they'd take your anniversary pictures? One reason we like Princess is that there's not always a camera in your face