Carbonite is horrible. First, the backups are really slow. As in, it took over 2 months to backup the first 100GB. When I tried to trim the backup set (about 250GB total), the Mac client app kept crashing, and I couldn't use it to select fewer files. When I tried to get support to figure out why it was crashing, they told me it was my fault that I had updated to 10.9. And then when I asked for a refund of my year subscription because of the horrible experience, they told me no.
Try a different vendor. Stay away.
Pros and Cons
Mac client crashes continuously.
Horrible customer support.
Slow, as in 2 months to back up 100GB.
Really, horribly, uselessly slow.
After having Carbonite on 3 computers for years I finally needed there service.... I lost all my priceless pictures. I did not panic though... I had Carbonite. It took TWO MONTHS and three 3 hour tech support calls to get my pictures back!!! The worst experience that I have ever had dealing with ANY company. Very deceptive practices. The restore of my pictures was painfully slow, so I called tech support... they said it was my internet connection speed. I called my internet provider and doubled my speed... That resulted in NO change in restore speed. I came to the end of my one year subscription (after 1.75 months of trying to restore my pictures) and even though I did not want to renew my subscription, I FORCED to in order to continue my restore and get my pictures back. I SWEAR, as soon as I hit the renew button and they charged me for another year the restore speed quadrupled!!!... The remainder (about a third of the total restore) finished in 1.5 days... ONE and a half days!!!!... all that they wanted was more of my money!!! Look at their refund policy... NO REFUNDS!!! Please do not give them your business!!!
The back ups looked fine until a restore was needed, then I learned that I had almost no data to recover. Never received any alerts. Customer service seems to be aware of this situation and just wastes your time.