Thank you for this report. I understand this is a test/trial, but personally, the potential of this change does not thrill me. What happened to the personal touch of disney?
I do know what you mean, that first moment of arrival at the hotel and walking into the lobby is a big Disney moment (especially with some of the deluxes, like Animal Kingdom Lodge, Wilderness Lodge, Grand Floridian, etc).
However this trial system is not compulsory, I guess it's mainly for repeat guests who often ask about whether the Front Desk line will be shorter or longer if they do online checkin, or if they arrive at 10am or 11am, etc. Think of it as a "FastPass to your Room" if you like, or "Checkin+". If you don't want to use it though, that's entirely up to you.
A couple of answers to questions:
"Paid in full" happens automatically for packages at 45 days out (and I assume for room-only at 6 days?) so no need to do anything in those cases. If you want to check, or force a payment through so this system will definitely kick in, just call the Reservation Center in advance. The system will not apply to any bookings where an ID needs to be confirmed upon arrival (e.g. cast member bookings, etc).
Welcome Packs will not (for the trial at least) be sent to rooms in advance. If you need one - for example for a map, parking pass or other welcome collateral - you'll need to pop by the Front Desk at your convenience to pick one up.
MagicBands and all their paid features (park tickets, dining plan credits, etc) will go live once the reservation is centrally 'checked-in' on the system, which is also when your text will be sent advising you of your room number - so guests can go directly to a park upon arrival at WDW if they wish.
The room number will normally be confirmed and a text sent about one hour before your stated arrival time, but it could be as close as 15 minutes if a suitable room is not ready early enough. If a room is still not ready by then, a message will be sent advising of the delay but your band will still be activated for all the other features but obviously not for door-key access yet. A followup message will confirm the room number later, and you will be able to use the door-key feature after that.
There will be three other Walt Disney World resort hotels taking part in the trial at the same time.
Andre