What I've found annoying with Amazon Fresh in particular is that they don't tell you there are no slots available until after you spend half an hour fighting with their search engine and populating the cart. And then, as you point out, they only show a few slots in the immediate future with large Xs across them.

Yeah, thanks, guys, that's really helpful. You've been screwing around with grocery delivery for what, 15+ years now, and still can't make it work?