Is a sous-vide circulator a good fit if I want a countertop cooker?

It depends on what you cook. Serious Eats and TechGearLab rate the Anova Precision Cooker 3.0 highly for fast, accurate heating, but a circulator only does sous-vide—it won't toast, bake, or air fry. Buyers who want one device for everyday tasks should look at a convection toaster oven instead.