I think if you are an experienced Instacart shopper (after you’ve done 5 or more batches) you get the better batches. If those aren’t snatched, then they get posted to the newer shoppers. The person I shopped for had done 7 or 8 orders but maybe because she didn’t tip well her order wasn’t taken by an experienced shopper.
But no, you don’t get to see their ratings, just how far they are from the store, the number of items, and the estimated fee for the order (but not whether the tip is included in that amount). I read Instacart had signed up 30,000 new shoppers, but of course many are like me who did one or two and then disappeared.
I talked to a college kid who was doing Grub Hub. She had the same experience that she’d take an order, get to the restaurant and it wasn’t ready, have to drive to an apartment complex and find the apartment, and then get dinged in the ratings for being late. She wasn’t making a lot.