You can definately use the lounge for breakfast. Afternoon is only a few snacks, nothing that would make a meal, except for some peanut butter & jelly. If you have a big lunch, you might be OK with the evening appetizers, if you think a few bite sized meats, some cheese, crackers & fresh veggies is enough to fill you. Of course, a few hours later, you can get some small deserts too. I think it might work some nights but not others. You may not even like all the evening offerings. Personally, I don't plan on the lounge replacing dinner. As for contacting IPO, it's good to let them know about what time you'll be arriving at least. They do try to have a room ready if they can.