Should I Do Hanon?

Hanon is good but shouldn't be part of your "pianistic bible". If you don't play it BUT can not play the patterns in the book well, then you are lacking in many areas. If you can do them well, you don't need to work Hanon. Doing them well in every tonality is good too ...

Does Hanon actually work?

Hanon exercises help drastically improve THREE key areas of your playing... Hanon exercises feature in households all around the globe, and for good reason. These piano exercises, which have been in existence for over 150 years, are proven to massively improve THREE key areas of your piano playing.

Are Hanon exercises good for beginners?

A Beginners Guide to Hanon Piano Exercises

They are usually taught at a more advanced level but are great also as you start to learn piano, especially for adult beginners who wants more finger dexterity.