It's excellent. I mean, technically it's just a very well developed frontend for a number of very stable and mature linux services, so you put it on some decent hardware and it's going to be reliable.I have had people at work recommend PiHole, how do you like it?
I have a whole thread on this particular setup, since I force all DNS traffic to the pihole and it in turn exclusively uses DOH to a set of resolvers I trust (CIRA).