I had a look at that a while back, my initial thought was OK more of the usual snake oil. However looking at it, it actually uses tried and tested windows tweaks that normally require a dive into the registry.. Not for the fainthearted.
The initial parts are a type of TFC along with AdwCleaner operations so all temp folders will get emptied including Java and Flash and the pain in the rear toolbars will get wiped
The other elements I am not sure about as it is a pricey bit of kit