I asked them about some kind of integration when I first launched, but because I had a pretty small userbase they dropped the conversation after a couple emails. Now that it's grown, maybe I'll prod them again.
Perhaps consider Postmates (http://postmates.com/). They deliver a broad range of goods in SF and Seattle.
Disclaimer - my friend works there.
First pass impression: Good balance between meal-generation and customization. For me, I would lock in breakfast and one lunch, likely varying a late lunch and/or dinner. Your comment below about locking in a couple beers (say every Thurs or Fri happy hour) is a great example of how to utilize this in a modern lifestyle.
