We just got back a week ago from our FIRST trip ever to Disney. There was myself, my hubby, my DS who was almost 3 and my DD who was 15 months.
We had a GREAT first trip!!
We did stay at the Contemporary, which made it verrry easy to come back and take naps. (which we did every day, except one)
We did character meals/buffets every day, but they were all either Family Style or buffet so it was "quick" . We didn't have to wait around for food.
For other meals, we did "quick service", again we didn't want to have to wait around with two little ones.
A decision that we made for our family was that we would be back in our room by 7:00 PM each night. This meant missing fireworks, night shows and night parades. We made the decision that our children's schedule was more important than those events. However, after the kids went to sleep, we were able to watch the fireworks from our balcony.
YES - I would have loved to have seen them, but it was more important that my kids had a normal night time routine - playtime, bathtime, storytime, bedtime!!

My baby girl goes to bed between 7:30 -8:00 pm and my son between 8:00-8:30pm.
This worked for US.
All families are different and should do whatever is best for their family.
My kids woke up at their normal (6:30-7:00am ) time and were ready for breakfast and the parks.
This was just the first of many trips we will be making to Disney, so I know that we will eventually get to see those nighttime activities.
We also used the Park Hopper, which was great. We would go to one park in the morning, then back to the hotel for naps, then back to another park or whatever for the late afternoon/early evening. Always being back by 7:00 Pm.
We did us Garden Grocer to delivery stuff for us: diapers, wipes, snacks, water, juice, milk, etc..... They were GREAT!!
When we bought something in the parks, we always had it sent to our hotel so we didn't have to drag the stuff around with us.
We used a double stroller and had no problem folding it up and getting it on the buses or monorail.
We loved that the Contemporary was on the Monorail system.
We LOVED that we could walk to Magic Kingdom from the CR. We did this almost each time we were going to Magic Kingdom. It was easier for us and faster. (only 10 minute walk)
My almost 3 year old did GREAT with the characters and rides. He loved them all!!
My daughter didn't like the characters, especially the ones that had their faces covered like Mickey/Pooh, etc... Hopefully, next time we visit in two years she will love them, too!!
It was a Magical vacation!! I can hardly wait to go back!!
Take care
kathryn