Even as a Mac user, your story has made me turn away from even considering that option. I think I got a 1 GB account as part of a promotion a few years back. I never bothered to activate or use it. 
 
For me, Cloud back ups sound like a good second or even third back up. Very handy at times, but not something I'd want to depend on as my only option.

The issue has mostly been removed by their change of heart as posted in the Sonar version of this thread here.
 
Please continue further discussion in that thread.