Definitely plan an excursion in Freeport even it's just hoppin a cab to Port Lucaya. There's NOTHING at the pier itself. Check out the little patio area on both sides of the ship out the back doors of the lido buffet. Sensation's a great ship and Port Canaveral's the BEST.
Oh, when we disembark, can you do self disembark or do you have to put your luggage outside the night before?
You can self assist disembark, but you MUST be able to have one hand available to hold the handrail on the escalators. They won't allow you on the escalator in the terminal if you don't. Also, you'll have to be able to handle your luggage on the stairwells in the ship during debarkation. Anything more than one suitcase and MAYBE a small carry-on per passenger would be VERY DIFFICULT.