Extremely geeky. Unintuitive interface of many, many switches. Not at all clear what does what. Does not integrate (or recognise) that I already have it installed on MacOS and in Safari, so thinks it is a standalone FireFox extension. Consequently, much duplication of settings. Seems to ignore / not see MacOS Adguard settings. And with all that, it fails to actually block ads — well, I can hear them, I just can't see them, and I am forced to watch a blank screen for the duration of the hidden-but-audible adverts! So, all in all... Non-functional at best and lazily unintuitive and frustrating at worst. My view: Avoid, Avoid, Avoid!