RethinkDNS: how stable and time comsuming is it?

I heard of RethinkDNS as the most powerful and comprehensive tool for net privacy right now. It covers apps internet permissions, but also anti tracking, and it allows to use a vpn, it also fights apps trying to elude those settings.

However I am worried about stability and maintenance. Infact I heard that it often crashes and configuration is a never ending process.

Honestly I don't want to waste time on those things, I am looking for a "set and forget" approach, like NetGuard, which I am currently using.