Instacart... What do you guys think?

So, from personal experience I use Amazon Prime Now. Why? It comes with my prime membership. It has everything I want to order. Something wrong with the order? Well it has Amazon's backing, things are refunded fast. Why do people even use Instacart? Like once in a while to order from let's say CVS? Or something else? Now coming to internationalization: It won't work in India. I can guarantee you that. One of the major markets. India is a different ball game. And from what my folks tell me, there are 10+ local players already doing it. People have mopeds. A grocery run is a 10 min thing using those mopeds. Europe already has Prime Now and Fresh. Will it survive? PS: I'm trying to have a healthy discussion.