I can't speak for the All-Stars, because I don't want to say "Ha Ha, we're better" (although, we really are)...
But here at Pop Century, we work slightly different. We follow the same basic guidelines though. As GoldenOldie stated, "Luggage Assistance" is different from "Bell Services."
At Pop Century, those Front Office folks working in Luggage Assistance (such as myself) want to keep our hours. Therefore, we've made a committment to raise our capture rate, and keep to what we tell our guests. So far, we've been successful at outshining the All-Stars.

(Not that there's any competition... lol)
When a guest pulls into the Porte Cochere, we offer our service. If the service is desired, we will tag each bag with sticker number tags. (Similar to airline tags, but much smaller) We tell our guests, "Your bags will be automatically delivered to your room within one hour of your room becoming available." Guests then proceed into the lobby to check in.
Once that is done, the luggage is taken into our storage room, logged, and placed on a rack. Anything that needs to be refridgerated, hung up, or locked up is done so. Due to health code restrictions, we cannot accept food if the seal has been broken. Our Dispatcher is constantly monitoring who is checking in, and which rooms are available.
When a room becomes available, that's when the clock starts ticking. The bags then get flagged for the next run. We do two luggage runs per hour. Sometimes each run has multiple runners going out to different areas of the resort.
You do not need to be in your room for your luggage to be delivered, with the exception of Alcohol. Someone of age, and with ID to prove it must be present to accept the alcohol. If no one is there, then we will leave a voicemail, saying to give us a call when we can deliver it.
On the flip side, on your day of checkout, you can request our services to pick up your luggage, and store it while you play around in the parks. When you're ready to pick it up, just stop by, and pick it up. Simply touch the Luggage button on your phone the night before to arrange the service. Service can be arranged day-of, but we'd need at least 1 hour notice of when you would need the luggage ready. (For example, Mears picking you up at 3pm, we'd need to schedule your luggage to be picked up no later than 2pm.)
Should you wish to borrow a hand cart, you may. Simply see a Luggage Team Cast Member for assistance. If you do not have charging privledges on your room, you will need to provide a credit card number. Should you decide to keep the hand cart as a souvenier, you will find a charge of $250 on your bill. We do ask that hand carts be returned within 30-60 minutes, to allow other guests the use.