I've only had one delivery so I can't really comment too much, just got bread and milk and it seemed fine
Just on the delivery, not sure how it works in other areas but in my area they put the food in an insulated bag (and I leave an empty bag out for them) and deliver it before 7am so I don't need to worry about delivery windows and being home or awake! I just shuffle out in my jim jams when I get up and get it.

ETA - I am going to try the fruit and veg but I think I'll select my own and not get a box, just because normally I have specific things I'm cooking so want specific veggies to fit in with that.