I have had this app for awhile now, and it does its job perfect. I can block exactly what I want to block. That means no more ads when reading the news (which I do everyday)
Plus, you can block more then ads, like fonts, and that allows you to load webpages faster and save time/battery.
You can also whitelist certain websites if you want them to get ad revenue and block any website you desire.
Best app out there in its category.