I find the experience of shopping at Costco very uncomfortable. The parking lots are jammed packed, everyone is darting around with large shopping carts, the lines for the cashier are long, sales people are trying to pitch me on travel deals as I walk by - it almost feels like going through a busy airport. I am a Costco member, but I only go to the store when I really need to. The fact that I can shop Costco via Instacart was a gamechanger for me.