Yes, if you have the confirmation and it shows okay, then that should be fine. I was thinking maybe it did not show. If you don't care about the room type, it won't matter. They assign in order of arrival usually, based on the type you booked. If you arrive early, you are most likely to be fine. Remember you can check in the day before on the app, sometimes very early into the day before. Let us know how it works out! I bet it will be fine!