I was using Carbonite.
My subscription expired in January, and I let it lapse.
The reason was that it wash’t backing up all my files, and was hanging up.
They told me I had unusual characters in the files, things like ‘_”. “#”, etc., and told me to rename them. These were news articles that I had downloaded, and there was no way that I was going to be able to do that.
Now I back them up myself.
I don’t know how many know this,
but Carbonite has a “default setting” of not backing up your video files.
If you have a subscription, they will not refund your money.
However, since you’re “locked in”, make sure they have to back up as much as possible. Go set your video files to be backed up, for starters.
try Crashplan.com