I went with a large family group. My sisters brought strollers but I don't believe they used them except on excurions. They found the distances onboard to not be that bad.
I did see others with strollers. As was mentioned above, the elevantors are on the small side. Also hallways are a bit narrow etc. If you bring one, you will want small and easy to manuever. A full size stroller would be unwieldy.
I saw a few folks with strollers, those who had small umbrella strollers seemed to do OK.