I have been running a pihole on a raspberry for several years and I cannot recall a single time it gave us problems. Depending on how comfortable you are with

I have been running a pihole on a raspberry for several years and I cannot recall a single time it gave us problems. Depending on how comfortable you are with Linux and networking, setup could take from an hour to perhaps a day? Also do note that you can start testing it yourself, and only switch the entire household to it when you are confident it works. I strongly recommend you give it a shot :)