Personally I do not trust him a total and automatic control of the tasks performed. To him, as to any other software of this type, moreover, are not - IMHO - to put all hands ... I prefer to keep control and supervise myself what it will do, and not allow him some potentially dangerous actions. That said, I have not encountered any big concern in almost 6 months of use, except on a laptop, where the desktop icons tend to no longer be displayed from an update problem ... TuneUp TuneUp is supposed to know how to resolve that matter, but not in reality (fortunately there are other methods)