Carbonite can't back
up multiple versions of your files, or backup your email - but
it's great for photos. Keep in mind that it can't back up
email, financial documents (while they are open), etc. Basically it can't back up
anything while it is open, either - we consider that a huge
disadvantage in the online backup industry.
Another limitation of Carbonite is
that it doesn't backup multiple versions of a document and the
encryption is weak (there is no personal encryption option, you
have to trust that their key is strong enough for your data).
So those concerns aside, as I said
earlier, it is pretty good for a non-technical person. Another
benefit is that they offer "unlimited" backup - sort of. Your
first 50 GB will be backed up at full-speed (ie, the only
limitation will be your upstream connection). After that you
will only get 500 MB backed up per day.
Read
here for more information.
In conclusion, if you are a casual
consumer and you don't really have a need to be serious about
remote backup then Carbonite may be the solution for you.