OK, my verdict on SPG Keyless.
The Aloft Bogota took about 10 mins to set up after all the passport scanning and data entry that seems to occur every stay. But...when it finally worked, all good. Except for a key card is need to activate the power in the room. Grrr. Back down to the desk.
Now on a weekend stay at the W Bogota and it had been over an hour since check-in at the desk with the passport scan, etc, etc and the app still shows 'Stop By Front Desk'.
Granted, I have fulfilled the promo requirements and paid with Amex as usual, but not quite sure how this saves time at the non-US/Canada properties?!