Def play with program ahead of time so u get used to how it works! Always refresh if u r stuck! The program is def slow and confused in first couple of minutes! I did on my computer but had my iPad as backup. I had a tab opened for each restaurant I wanted and did in priority order. I had to go to day back space, fill in correct date, wait till it comes up, select time and amount of people! I had 8 so there were issues after I secured my first ressie, breakfast @ 1900 Park Fare. Second issue not all my friends & family were showing up (have that all set up on MDE), so I refreshed, eventually they came up! Third issue could not get DD site to store my credit card, even called and 20 minutes later sitill couldn't do it. Found out the hard way u can't split a group into 2 ressies, it won't unless it's a hour or so later, at least it wouldn't let me do! So have backups ready! Honestly by th afternoon say about 2-3 pm went back on and twick some a little closer to my original times! Overall don't call had a 30 minute wait on phone. I gave up! Good luck to all!!!