When you log on, you can ask to see restaurants that serve your address. In the case of Elaine and Ed's place, there are over 50 restaurants from which to choose. Then, when you see the list, only the ones that are open will show up as links. The others are just listed, so you know right away what choices you have.
When you choose a restaurant you get to see the menu. When you hover the cursor over an item it describes that item. When you click on the item it gives you options - dressing on the side, extra this or that, or special instructions. Then you can choose to add it to your order.
At the end you can choose to add a tip. A suggested tip is already entered in the box - it seems low to me, so I go higher. Then you pay by credit card, which you can keep on the website so you don't have to enter it every time. When the order comes, you just sign the bill and you're done. I cannot imagine a better system for ordering. No more misunderstood orders, no waiting for someone to answer the phone, the menu is right there in front of you so you can take the time you need...it really is fantastic!
I can hope such a thing would come to my area. There is a somewhat similar service where I live but it is far more limited and there is always a service charge. That's because there is so damned much road between any restaurant and where I live and not enough people there to make it work out. Density has a lot of advantages.