I love that they make it super easy! It's so simple - just add items as needed from my grocery list & voila everything comes right at me when i need it most!! Sometimes there are too many options but if something doesn't look good/isn't available then we'll go with what looks better instead of getting upset about not being able to get exactly what was ordered. We've been using insta-cart since our first baby came into this crazy life stage where she only eats one thing every few hours. Their customer service has never failed us either which makes things even easier. The app itself works great once its set up properly though sometimes some products don't show correctly depending how big their selection might be. Also no price matching until after purchase unless agreed upon beforehand through email etc.. So far very happy customers who haven't had any issues whatsoever other than those minor hiccups mentioned above.