Really, really massive biography. Though personally I found myself less interested in the political and religious context than the personal, it was thorough and incredibly well-sourced. No wonder it's considered the definitive biography of the Brontes.
I neglected other books on hand in order to finish it in under a month... very compelling, but due to the length, best suited to intense enthusiasts!

It's a million pages long, but it's worth it.

Meticulously researched this biography really brought the Brontes to life and I now have a much deeper appreciation of their work. Thoroughly enjoyable and very well written.

A long read, but very thorough, mostly engaging, and full of information.