It definitely seems pretty capital intensive as well with all the delivery vehicles and the actual boxes. As for signing - I don't think the delivery guys are as concerned just as long as someone accepts it. For instance in San Francisco roommates usually accept for each other without really needing to sign. I've also heard issues with amazon lockers being full most of the time so people will need to find a different spot and I'm curious if it will be the same for this. Overall I think there are still a good number of problems these guys will need to straighten out to be able to scale. I'd also be curious how much they are paying the stores with the actual boxes.