Excellent! We have had a sticker on the back of our room card and each bottle was crossed off as ordered. That does not solve the problem of having a wine from another package, but it is a record of what you have used and we have not had problems that way. We never use the package outside the MDR, so that helps, too. One cellarmaster, Bernie, was really superb, always ready and willing to fix things and he trained waiters on how to imput the computer for the packages.