Admittedly; school aged is also not MY favorite.
Pros: you get a lighter load during the daytime, and most of the time school aged kids don't need as much "hands on" attention
Cons: even though they aren't around for one snack and lunch, I find that they eat ALMOST as much at afternoon snack as the babies do all day! They also tend to be harder on toys and such. I don't have much patience for the behavious that crop up at that age, either. Whining, tattling, sneaky-ness, etc tends to appear as soon as they enter school.
The trickiest thing that I found was finding things to do that all the babies and the older kids would enjoy. Going outside was good, but it was tricky to keep the older ones entertained, and keep the babies from eating grass, dirt, etc. LoL