I have used several delivery services, and my experience in two major metro areas has been that they are virtually indistinguishable from restaurants that have

I have used several delivery services, and my experience in two major metro areas has been that they are virtually indistinguishable from restaurants that have delivery people. The single biggest difference is that they tack on their own fee- a minor inconvenience since they take the orders online and so are less likely to get it wrong.