I had the Pro service for over a year. During that time, at least monthly, uploads would not be accomplished and I had re-install the software. Inconvenient to say the least.
Then disaster struck. Hard Drive failure. All my business records were backed up to Mozy. So no problem I thought. The computer tech said he may be able to help in some way, but not all data and suggested that I requested the DVD backup from Mozy.

I ordered those DVDs on June 23, 2008. The Mozy website said it takes 48 hours to send out the DVD. Seven (7) days later no DVDs. Called Mozy who said my request was being handled. When do I get the DVDs? Customer service replies,”When we get to it.” More calls and emails. Same reply. July 11, 2008 DVDs delivered. Eighteen (18) days after our request. The DVDs are labeled Mozypro, date 07-02-2008, Restore: Vol. 1 of 2. The FedEx label shows they were held until July 10, 2008 and shipped overnight. Why the long delay. Again, no one at Mozy can explain.

The customer service is department is a prime example of how NOT to treat customers.
Yes, I have all the emails, chat records, etc. to backup this posting.
As has been said so many times, Buyer beware!