The main thing to remember, whether you use Mozy, idrive or Carbonite, is to test the actual restore of your files.
If you use these services to back up your amazing charts db and imported items, be sure to restore the files to another location, reset the path in amazing charts, use those files to confirm that it worked (preferably once per month).
If you really wanted to see a lengthly discussion about pros/cons, see this website. careful though on checking dates of the posts as some of these are older comments based on past versions
http://lifehacker.com/software/life...final-round-mozy-vs-carbonite-302597.php