This is genuinely my favorite ad blocker that I've ever used. I've used many of the major ad blockers and while all of them have done their job at least partially well, this one is definitely the best. It has the best selection of features and options that are available. It also functions as a guard against trackers if you enable the right filters.
Provided that you keep your filters up to date (you can change the update interval as you wish but I still manually update a couple times per day), it blocks virtually every ad and includes the ability to block those annoying cookies notifications, as well as any ad block prevention banners. Of course, those prevention banners also keep themselves up to date, so you want to keep your filters up to date as often as possible. But I digress...
This ad blocker is feature-rich, powerful, effective, it's not bloated and it doesn't cause any noticeable slowdown. I highly recommend using it in every browser you use. I use it over Opera's built-in blocker (though I keep Opera blocking trackers for an added level of privacy) on my main PC as Opera's blocker still misses some ads here and there.
Definitely give Adguard a go! It will help improve your browser's security, it'll help guard against invasion of privacy and it gets rid of the annoyance of ads!