John Galsworthy's The Forsyte Saga was an enjoyable read, and I stayed interested in the characters throughout the long book. It mainly deals with issues of upper class Edwardian society. I didn't have as much sympathy with Irene as I knew I was supposed to have -not that I was at all synpathetic with Soames either. Most of the characters seemed totally self-absorbed.
I have not seen any of the dramatizations, but there have been several, including That Forsyte Woman in 1949 where the bad guy is played by Errol Flynn.
The entire work can be read online here at OnlineLiterature