Their restoration protocols could be better. I pulled all my clients out of their cloud mostly because I wasn't confident that they could restore out of the cloud. This was backed up by friends who had been burned by stuff like that.
We moved away because of the lack of resources to restore from a potential catastrophic failure. It's challenging, and in some cases, they couldn't do it because they didn't have enough resources. For example, if there was a major disaster, and everybody needed their images out of the cloud, they couldn't give them to everybody.