We had made reservations through Open Table for Pampas at Planet Hollywood in Las Vegas. Upon arriving for our 7pm reservation, we were told that they did not have our reservation and that there is a  waiting list and it will be 20 to 30 minute wait, which turned out to be a 45 minute wait. My thing is if you have reservations then why don't you have a record that you did receive it. They commented and said that it is better to call in your reservation instead of making it on the website or through Open Table website or app. Other than this experience the food and service was very good.