The food processor is my favorite kitchen appliance. I wouldn’t want to cook without it. Onions really hit my eyes so I will use it for them every chance I can. I love chopping things but sometimes soft leaves and herbs just whip up perfectly so fast. We make hamburgers weekly with half bacon (turkey for us) and I just mince the bacon in 10 seconds with that thing and mix with the ground beef. Boom.
It’s also nice to have a cheap, smaller one for doing little amounts of things, like onions. We got a Proctor Silex at Rite Aid for almost nothing, and it’s been great for very small, occasional jobs; it looks like it holds about 2 cups, takes almost no space, and is very easy to pull out and use.