Most of all it's simplicity, which makes everything easier than before! I mean how many apps do you have to install in your phone just so that they can make restaurant orders? And then if there are any issues with them after installation - what should we use as support/customer service department?! There shouldn't be anything at least since their customer care team always responds within 24 hours (even when its 7AM). Besides being convenient this app also offers great discounts like $5 off every order or free delivery up until 12pm everyday through Instacart promo codes!