The reason for online check in is so you don't have to be behind parties who have a zillion questions and take twenty minutes to check in. On line check in is supposed to be for people who just need their room key (and tickets if that's part of your package) and then they leave. I used on line check in all the time now because I don't have to hear anything about park hours, or the transportation system or Extra Magic Hours, or the food court, or anything else. I just want my room key and that's it. They even have my phone number in the system so they can call when the room is ready. Takes me about two or three minutes to do check in rather than more time spent behind families with a zillion questions.