I've also been using it for about a year and am generally happy with it. One caveat is that it does sometimes end up breaking site functionality when it blocks a script from loading, occasionally in confusing ways. Usually you can fix this by overriding a few of the blocked things in the dropdown list, but it takes a little bit of technical savvy to figure out what needs to be allowed. I had to disable it on my parents' computer because they got frustrated by sites breaking.

This is mostly with an earlier version; I just upgraded to 1.0 today.