It comes with a nice web admin console with some quick statistics. So here's a shot of statistics for the past ~20 hours:Pi-hole - A black hole for internet advertisements and trackers
The blue area on the graph represents the percentage of all DNS requests which were blocked by Pi Hole. As you can see from the large numbers at the top, about 75% of all requests are being blocked.
I had installed the pi hole software on my Odroid the night before I posted about it here, but hadn't yet configured my router to use it for DNS lookups. According to my previous post in this thread, it seems I hooked it up at around the 18:00 marker on the graph, so even though it says those are my 24 hour stats, as mentioned above, it's really only showing about 20 hours of actual usage.
Pi Hole blocks ads, trackers, telemetry, etc. No troubles so far.
But I kind of wonder how badly my entire LAN will fail if my Odroid somehow goes down and thus my router can't connect to it for DNS lookups.