Just here to echo the sentiment that Yes, Yes, Yes -- we loved cruising with our infant!
Our ds was 9-months when we first cruised with him in September. We took a 4-day and planned to use the nursery during one excursion and two nights. We were leary so we only signed him up for the three-hour minimum most of the time. But, he LOVED the nursery. So, dh and I had our first dinner without him since he was born...it was so WEIRD! And, we were so excited to have him there, we even got him out of the nursery early one night so that he could participate in the deck party.
Everyone is different. And, many people will tell you that it is an inconvenience taking an infant along. We found the dining rooms and waitstaff more than accomodating, the nursery well equipped, safe and filled with workers that actually looked happy to be there and accessibility to shows and other functions as being not only accomodating -- but welcoming. Granted this little guy is our first, but I couldn't imagine taking a vacation without him. I know he won't remember our trip, but the memories as parents....well, to us they are priceless.
By taking ds along, we all got what we wanted. We got some alone time, some family time and some great memories. In fact, I can't wait until our May vacation to make some more!!
HTH,
Amy