For our first trip we did TS dinner on arrival night, then two TS lunches and one 4:10pm TS Fantasmic dinner, and one 7:10 TS dinner before Illuminations. I liked the lunches. We were in the park early and ready to have a good meal at lunch. Lunch was one of the few times where I knew exactly where we would be and what we would be doing so I was comfortable with scheduling that ADR. The others were scheduled around nighttime entertainment so I was comfortable there too. Especially for planning the first trip.
Now that my feet are wet, for our second trip, we have one breakfast, one lunch, three dinners (one 2TS), and one dinner show(OOP).