Works excellent & quite unobtrusively. Easy to temporarily turn off if one is on a site that YOU wish see ads &/or who is sponsoring/paying the site. Also, on the raw occasion the blocker may be hampering the site's operation.
Try it & support it! you'll be amazed how how much faster & responsive your web experience is. + how much of YOUR screen is clear of intrusive, page-hogging ads YOU have no interesting in(!). (;-]