I've had several different CuisinArt food processors almost since they first appeared on the scene, which must have been in the mid- to late-1970s. I've had good luck with them and probably would buy another if mine were to conk out. I currently have a Cuisinart Power Prep Plus with a complete set of blades and a Cuisinart Mini Prep. Over the years I've learned to make these machines do just about anything I want, from slicing to shredding to mincing, chopping, and blending.
As so many others have said, however, a food processor is not a magic shortcut to good food. In reality, it's little more than a complicated automatic chopping and slicing machine. While it's convenient to have when you need to cut up a great deal of food, I find that it's too much trouble for most tasks, and so I rarely use it.
Knives are faster and a lot less hassle for most jobs. For blending sauces and so forth, I like my KitchenAid hand blender -- it does a better job and is much faster.
For small jobs, like mincing a cup of parsley or grinding nuts, I like my Cuisinart MiniPrep -- just a bowl, a lid, and a blade and extremely simple to operate -- but the larger machine is a PITA! Worth it when you need it, but I just don't need it more than a couple of times per year.