I'm in the same boat as Scotty. I've never used my backup pro. I think TiBu was the first app i bought when i began rooting. I was hesitant at first as well because it's more than any app i've paid for. Now that i know what it can do. I would gladly have paid a couple of more dollars for it. It's worth every penny in my opinion.
I used to be Android all the way but bought an Iphone 5 in October. Feel free to ask me how it's going via PM.
GO BRONCOS AND ROLLLLLLL TIDE!!!