We have friends who went on Disney for their first two cruises. Their kids were young and they had a blast. Now they compare everything to Disney and nit pick. Silly little things annouy them.
We have been on three cruises and when something does not as expected or meets my expectations we just move on. Not going to let something stupid ruin our vacation. I find that every ship we've been on has plenty to offer if something is not as expected. Move on.
On our last cruise I was worried that we may have set our expectations too high because we were sailing on the Oasis. She delivered and we had a blast! Even dealing with Sandy for the last two days we had a good time. You'll be fine!!!