Marriott now offers Mobile Check-In on their smart phone app. The idea is that you you can check into your Room on your phone up to 24 hours in advance and Mariott will send you an alert when your room is ready. The app is also suppose to save you time at the Front Desk where you would pick up your Room Key. I'm curious as to how many Insiders are using this service and what are their thoughts.
Personally I have not used Mobile Check In yet. I'm a little concerned that Gold and Platnium Members may miss out on potential Room upgrades by doing so.
Do you use Mobile Check-In?