Faulkner is not for everyone. His stream of consciousness approach to narration can be frustrating or even boring to some readers. So I'm not going to say this is a must-read, but I would call it a should-try for lovers of literature as an art form.
This is not a tidy tale about grief, family, mortality, and integrity, yet it's about all those things in a complicated, confused, uncomfortable, opaque ganglion of thoughts, hopes, and despairs. It's the kind of book that should be taken on its own terms, a book intended to evoke a feeling and spark curiosity, even empathy more than narrate a cohesive tale. It's messy, self-contradictory, even nonsensical at times, as real life so often is.
At worst, I would say that the novel can come across as self-serving, but I believe the intention is there, and the feelings are real.
So should you try it? Yes. Will you like it? I don't know, you're you! But I like it. And I've read it twice! So take that for what you will, you are free.