The first two times, I said "hey I want a sandwich with [x]" and I got it but it took a lot longer than if I just clicked the necessary buttons on Seamless. Then I kept getting random calls from time to time from pizza delivery men saying they were downstairs.
They were very apologetic and nice about it, but really it just wasn't worth it for me. The CTO (I think) reached out to me some months later asking why I stopped and well it's the same answer: very little utility for someone like myself. If I were rich, hey sure why not boss someone around for random things (though I don't know why I wouldn't just hire someone I can trust). However, if you're middle income or even a little higher, what's the point really? Everything else is basically on-demand in this new uber-fied world.