We are doing the same...a two birds one stone kinda thing!
We have
7:30 Chef Mickey's
8:00 Akershus (not for A & E lol)
10:35 Crystal Palace (MK morning EMH day)
and we are doing the Pirates and Pals Cruise for Hook and Pan
We plan on doing rope drop each day (My family are morning people anyway, DS is up at 5 sharp EVERY day)
I do my own planning. The few times I've looked at free versions to compare, I found them inaccurate. However, I know my way around WDW quite well. I am my own touring planner.
Character meals and any buffets: traditional sit down meals are an opportunity to relax, to sit. Otherwise you may be on your feet much of the day. Character buffets are fun, but they are not remotely relaxing or quiet. Every member of your party is constantly getting up for food, pictures. They are all rather loud. They usually take about two hours! On top of that, unless you very careful, you will walk out stuffed. Character meals are more fun than standing in line for two hours, but I can't really call them a time saver. How you might otherwise spend that time is really up to you though, and how you choose to spend your day.
WDW is constant stimulation: sights, smells, noise, touch, and even taste. So a quiet meal can be much more than a meal.
Also, well. My family can only handle so many buffets in a row. You mention your character meals, but not the rest of your meals. If you have other buffet/all-you-can-eat type meals it might be too much. Also, the menu places/non character meals have better quality food, and better prices.
At WDW, each of us can only be on the go so much. Having fun is about choices. While I try to be in the parks each am by 9:15am. We don't beat ourselves up trying to arrive by rope drop. I personally find night hours far more useful, relaxing and enjoyable than the 8-10am park hours. Seeing the fireworks, lighting effects, and cool evening air are rather fun. Sometimes we go all day, sometimes we take an afternoon break/nap.
Having fun is realizing that you can't see every little thing. You can easily see most of the headliners, and much of the landscape, but not every character, show, animal feeding, etc. Go as much as you are happy being on the go. See as much as you can happily see. And whatever you don't see this trip....you can see next time.