I find it an a very good program .I am using it just now.
Just a matter of getting used to it you will get a lot of pop-ups as you start browsing as it gets rid of all the rubbish programs that try to install themselves on your computer.
I just refuse them all and so far i have not needed to go back into a squared to allow them again.
Free for a year you cannot argue with that.
Once you start using it you will want to keep on using it.
I would recommend it I think it is great.