We have walked up to ESPN Zone many times. In fact, I don't think I've ever made a reservation there. Things to consider: Is it a big day in sports? That will make a huge difference in how many seats will be available and how quickly they will turn over. Do you care which side you sit on? If there is a wait, the right side with the big big big screen TV and the row of lounge chairs is usually a longer wait than the left side. The left still has TVs if that's important to you. Just not of the same magnitude. Is outdoor seating available? If they have the limited outside seating open that is an option if you're okay with that.