I have recommended this service to anyone with critical data on their home computers for a long time now. But I myself had little use for this service. Largely because almost everything crucial I have is already backed up in the cloud.
But I am finally giving it a go. 5 dollars per month is practically nothing and I cannot really predict what disaster is awaiting me in case my current system crashes!
In any case, I am currently on the 15 day trial they offer to all new users. After that I would probably take their 2 year long plan.
For now, I am just freaked out!