it was a little confusing but i went ahead and tried it last night. works pretty good. i didn't understand the "system" part so when i backed it up, it messed things up. but i went back and just did the non-critical apps and app data restore and just reinstalled the more critical type apps and configured it myself.
excellent program. i wished i spent more time with this app when i first got the evo haha, but i don't think i'll be using it much since cyanogenmod7 works so much better.