I often wonder If the Disney food is actually good or if it's people getting caught up in Disney magic. Would you actually eat at these places if they were in your hometown?
Good question--one I've been thinking about. I've decided I probably would eat at most of the restaurants, but I would expect some of them to be cheaper considering the quality of the product. The only reason I found some of the pricing acceptable was because I expect a pretty big markup when vacationing in a resort situation.
OTOH, I had a couple of meals that I would have been happy to pay more than what I did, regardless of location. Jiko comes to mind.
There are definitely quality meals to be had, but yes, too often I feel like a lot of the positive reviews I see amount to basically, "wow, it didn't suck!"
Better-than-Applebee's quality meals we had on our recent trip: Jiko (so much we ate there twice), Sanaa, Boma (dinner; I was not wowed by breakfast), and (surprisingly to me) Akershus. I'd even put the fish and chips in the UK pavilion in this category.
Everything else was pretty much Applebees (or if you are familiar with Perkins, I'd compare to that as well, especially in terms of breakfasts) quality, which is not necessarily a bad thing, as long as you realize that it comes with a significant markup that does not reflect an increase in quality of the meal. That sounds bad. What I mean is, if you are eating a TS meal in most establishments, expect it to cost about 1.5x to 2x what you would pay for the same food at Applebee's. Do not expect the meal to be 1.5x to 2x better than what you would get at Applebee's. It's still going to taste like Applebee's for the most part.
Not bad, but we all know we wouldn't pay those prices if we weren't a captive audience. What it boils down to for me is convenience--my time is worth more than my money when I'm on vacation. Yeah, I may have paid a crazy price for that early morning character buffet. But I also probably saved 45 minutes that I don't have to spend waiting in line for characters later. And let's face it, the food is just fine, it's hot, and most importantly, I didn't have to cook it. Because of that, I don't mind paying the price.
OP, FWIW, we took our six year old with us to Jiko twice. There were several other children in the restaurant dining with parents as well. All were very well behaved, and the restaurant had enough ambient noise that they were still able to chat, color, etc. without having to be constantly 'shushed' by parents. Other posters can probably talk about other signature dining establishments, but from what I've heard, except for V&A, you really don't need to rule out signature dining just because you have young kids.