It's worthless.
You'd rather save the money and learn yourself. I recently had the pleasure of helping a relative who had previously used the service, I heard nothing positive come from it. The help offered is the usual basic turn it off/on again and answers can easily be found using this wonderful thing called Google.
If you can browse the internet without assistance, then you shouldn't require the service at all. How often is it that you come across a problem you can't deal with yourself? Computers these days are relatively easy once setup!