i think i used that program a couple of years back.
i liked how after a couple of days my hdd health (toshiba) dropped to 22%. went on their forums and others (with different hdd brands) had the same issue. they said they were working on it..... it was crap. hoped they improved it somehow.
a recent hdd article published by google said that most hdd deaths cannot be predicted (the SMART didn't alert most of the time or it gave false alerts). you can google for that article.