Warning to all Brave Browser Users
Blocking variations.brave.com which is used for A/B testing could potentially break Brave's functionalities. For me did Brave's "forgetful browsing" feature broke which seems to be disabled by default if you block this domain.
Btw, here is a detailed, technical review. It is in German, but with transtae and all the code, it should be understandable.
TLDR: It's good.