Gobbler was a great idea with great functionality that worked well for me for a while until they decided to stop supporting Windows. Remember that? They warned Windows users to download all of their backups before a certain date after which they would not be accommodated. Then after much online outrage, they apologized, said that they would refund everyone's money and continue to backup their files, with a view to releasing Gobbler 2.0 which they'd previously said would only be available for Macs. Well I waited and waited and waited until it looked like they just weren't going to bother, then gave up. Besides which, Gobbler had started to malfunction for me - randomly logging me out and failing to back stuff up for days at a time, creating duplicate files, that sort of thing. I removed it straight away and I will never allow it back on my computer again. They've thrown Windows users under the bus and don't care.
So I switched to Crash Plan and couldn't be happier. It provides much the same backup functionality as Gobbler but executed a lot more professionally. I got the annual subscription and it was along the same lines as Gobbler price wise, only there are no space limits as far as I can tell. Screw Gobbler.