Last week I requested a specific room # at a Fairfield prior to arrival and got a reasonably-quick response back.

Later, at that same Fairfield, the TV remote was missing and I requested it by the app. It was about 45 minutes before the remote showed up at my door.

Overall, I see the app (and matching website optimization by Fisher-Price) as a gimmick; both are glaringly unusable for many things.

About the only good thing about the app is being able to give the hotel a heads-up about what time you think you're going to arrive. In theory text messaging requires less employee time and one employee can manage multiple text conversations simultaneously, further reducing staffing levels... but I don't see that happening.