Yes, we've gone through those steps as well with the same results. I even had a folder of completed work get overwritten by incomplete work done 2 days before when the other designer signed onto her laptop. THANKFULLY I have Time Machine that was backing up the files and was able to recover that folder through there.
Do you know anything about using Dropbox for the same collaborative purpose? We need at least 75-100gb of space because files we work on are often huge and projects have to sit in their folders for a while before being approved to be stored on our server.
Time machine has been a lifesaver more than once. Especially when all files in current production disappeared from CC earlier this year!
We haven't looked at using Dropbox. We have a good-sized design team with a lot of big projects constantly on the go, and have come close to filling 100GB of storage in our collaborated folder in past. Have to keep on top of archiving finished projects to a local server. This isn't stable enough for working on files directly though, so CC was supposed to be better for this purpose (plus accessing CC from other locations is a bonus.)