By doing pickup, you get pretty good convenience (almost as good as delivery), great pricing, and somewhat limited selection (but always reflected in-app at order time, rather than surprising you at pickup time). That's a tradeoff that works for me.
A few months ago you could only order restaurant-sized quantities of things (like minimum 25 lbs of bananas), but they've since started making more items available in "family friendly" sizes (3 lbs bananas, $1.80).
(They do have a $20-off your first order referral promotion I'll mention [3] in case you want to try it, but I'm just a happy customer who wants to see the concept take off.)
[1] https://www.gocheetah.com/
[2] https://techcrunch.com/2020/04/28/cheetah-a-restaurant-whole...
[3] Enter referral code "2EA2666F" at sign-up or https://cheetah.onelink.me/j187/7b49398d