Last week I stayed at The Woodlands Waterway Marriott Hotel in The Woodlands, Texas.
The day before I was to check in, i got the alert for mobile check in on my phone. I proceeded to do the mobile checkin on my iPhone and noticed i was upgraded to a Larger King executive room. I only booked a Std. King room. Then the next morning when my flight landed, I got an alert saying my room was ready and asked if i wanted to try Mobile Checkin. Instantly i had my Room Number and my Key on my phone. Once i got to the hotel, i parked in the parking garage. Got my bags and headed inside. I skipped the counter and went directly to the elevator and to my Room. Using the app, i was able to open my door and get in the room.
I was also able to use this Mobile Key for Lounge access as well. The only issue i ran into is that the mobile key can not be used for the parking garage. I had to go to the front desk and get a physical key, that did not work either on the parking garage.( The valet came and opened the gate for me)