I used to be a fan of Gobbler until they announced they would be stopping Windows support. Then it start screwing my backups so I got rid of it. I don't know if they've redeemed themselves since but their treatment of paid Windows customers was atrocious and I lost all confidence in them.
Upon the advice of Cake's Noel Borthwick I switched to Crash Plan. It has all of the functionality that Gobbler had (e.g. access to a version history of all your files) and more, and is a very reasonable price. I forget the yearly fee but it was along similar lines to Gobbler. I'm finally at the point where I feel confident that my cloud backups are happening without me having to check. Gobbler would randomly log me out for days at a time and it screwed me on a few occasions when I really needed a previous version of a project but they just weren't there.
I've never tried Splice but the loop library part seems like a gimmick.