What year is it? Did the Internet just come out? Are we still in the infancy of sharing files quickly and efficiently? Dropbox takes (literally) 21 hours to upload 7 small movie clips to a shared folder. How can you insult someone by asking them to upgrade on a service that is so terrible? I would never pay money to receive the service you provide. It is literally quicker for me to fly to my client in San Francisco, hand deliver them the files, and then fly home to Toronto. I could probably stay for a meal before I flew home, and when I got home, Dropbox would still be uploading the same 7 files. If your company does ONE thing, maybe you should try to do that ONE thing well.
Your company is a joke and the service you provide is insulting.