I never liked how the food processor handled things like that. It’s better for when you want things chopped really small or blended. I use my 3 cup cuisinart chopper a lot for making sauces, pesto, baking related things. When I had a big one the only time I used it is for pastry dough and I actually prefer making it with a handheld pastry blender.

Chopping vegetables for that much soup shouldn’t take more than 20 minutes if you aren’t particularly fast. Taking out, assembling, using, disassembling, washing, and putting away the food processor is just as long.

I have the short version of these and almost never wear them because they run too hot (in NYC). Still keep them for those days when I’m going to be out in the snow for 1+ hours.