First off, you want to use
Amazon Prime Now if you want perishables.
I have never been able to find it from my Amazon Account.
I have downloaded the Prime Now app on my phone and I get to the website by Googleing Amazon Prime Now (of course, I now have it bookmarked)
As someone mentioned earlier, no alcohol.
You can order in advance and pick your delivery window or order for immediate delivery with a two hour delivery window. I usually place my order as I get on the plane for my two hour flight.
They do have a minimum order for free delivery - it used to be $25 but I think it is $40 now. As long as you meet the minimum, there is no delivery fee but a tip is recommended (via the app). I think the delivery fee for over $10 but below $40 is $3.99.
Disney has imposed a $5 delivery fee per order (not per container, box or bag) at many, if not all, resorts. If you meet the delivery person prior to them getting to bell services, there is no fee.
Amazon Prime Now will pack your groceries in paper bags and will include a cold pack for your perishables. In addition, if there is room in their fridge, bell services will place your cold items in there. They will also deliver to your room. I have heard of them putting cold items in the room fridge but that has not been the case with me because I usually just pick up the groceries from them.