We order something from them on every trip, and have never been disappointed. They will leave them in your room for you when you're not there, but usually only if there's evidence that you've checked in (suitcases, personal items, etc). Our experience is usually getting them delivered to the room while we're there. However, if we go right to a park and DME has dropped our bags in the room, they'll sometimes be there when we return.
I used to order one of the
DVC arrangements each time, but you can only have so many DVC coffee mugs.

I've been getting non-DVC arrangements the past few trips. If you order something with a large glass vase, have a suitcase strategy ahead of time to get it home. We fly Southwest, so I've actually started bringing a "souvineer" suitcase with us that flies down empty, and back home full.
They use the standard FTD web site for online orders. Before you start, take a minute to look up the street address of your hotel. You need to enter it as part of the ordering process.