When compared to either the Kwik-E-Mart or the Springfield Grocery Store, the Monstromart is much bigger, with a wider choice of items. The items themselves are sold in much larger quantities than regular stores. For example, nutmeg is sold in a huge 12 pound box. As Apu comments they have a "great selection and rock-bottom prices". The store also reminds its costumers that "we love each and every one of you".
The store's tagline is "Where Shopping is a Baffling Ordeal".
Marge and Apu visited the store after Apu was fired from the Kwik-E-Mart and could not bear to shop there. Barney was also shown to shop there, confusing a giant syrup bottle with a shop attendant and then, thinking he had killed her, knocking over some cranberry sauce, causing a large flood. Grampa was seen holding up the express lane at the cash register because he wa desperate for attention. Krusty later holds a signing there.