Well, yeah, it's pretty good, but has a very low free tier limit. It's barely enough to cover my IOT subnet and subnet for stuff like AVR or TVs.
So if I'm supposed to pay for ad blocking, I might as well read the article and use one of the other methods[1] instead :)
[1] I was trying Rethink several times, but WG Tunnel with ad-- and tracker-blocking service works best for me.