Embarcation was a breeze secondary to having "Elite" status on Princess. We chose an inside cabin on Lido deck since it is only a short trip to the deck/pool area.
We have been on the Emerald and Ruby before so the Grand Princess is definitely only "Grand" in name only. It is somewhat "worn and torn" and scheduled for refurbishing in April of 2011.
Overall the quality of the service was excellent. Several of the room stewards and dining room staff could use a "shot of personality" however. Many never smile or interact as on prior cruises.
The inside cabin is a little smaller than on the Emerald or Ruby. Also, the closet space is extremely limited in comparison.