I've only ever used Disney Floral & Gifts for an in-room celebration so I'm sorry I can't comment on any outside services. One thing I learned when I did ours was that actually arranging something to be done before someone checks-in/enters the room for the first time is nearly impossible. Disney just won't do it, issues with timing, room assignment, etc. It works better when you can arrange it for another day after check in. Maybe others have had different experiences but that was an obstacle I ran into when trying to celebrate DS's birthday last year. Good luck!