Been twice, it's a cool experience, 2nd and 3rd levels are where you want to be, make sure you aren't too far back on 2nd level and blocked by overhang. Unless you have a whole booth to yourself or group, getting out from the sofas can be a pain. There are some sections of bartop seating on 3rd level, they may be considered accessible seating, but anyone can book them and they are the best value and give you most room and easy to move around.