Although many people are uncomfortable with having the tip already determined at the beginning of the meal, (having worked as a server before) I understand why they do it. Many people would calculate their tip based on the amount AFTER discount when they receive the bill, rather than the actual bill. The TiW system eliminates any fear on the server's part that they will be tipped unfairly or any awkward explanation by the server of the pre-discount amount. I actually worked at a place when I was younger where many of the servers bluntly explained which amount the tip should be based upon. That would definitely negatively affect my dining experience. We are getting TiW for our January trip (AP holders) and I am glad to hear that bad service is not common just because the tip is included. I think having it calculated for us will be a big help, since DH can't seem to get the hang of calculating in his head!