Agree with everything said here!
Babies are easy at WDW, we took DD at 10 months, 17 months and just over 2.... All trips had challenges, all trips has amazing pros and cons. (Trip reports for 10 and 17 months in signature).
At 10 months they go with the flow, will be in ergo, or stroller, can ride most everything with out height restrictions. Food can be easy or hard depending how much real food you've intruduced already. We only gave her stuff she had already had at home. Baby care centers are great, but didn't need them much at 10 months. 17 months we needed them more.
Only cons I can think of are, amount of stuff you may need, we shipped most of the stuff, just easier for us. Are you strict schedule people (for the baby). Will you be willing to push it a bit if they stay up late nap at a different time, or in the stroller, etc. if you want to stick to the schedule that's fine too but just plan for it, so your not rushing to make it back to the hotel for nap time or bed time.