I didn't finish the book.
I mean, I gave it a good 400 pages worth of attention and then...I gave up. Some of the writing was absolutely poetic and beautiful but, in the end, I got tired of the over-the-top descriptiveness and tragic moralizing. Dickens' description of David's romantic interest for Dora reminded me of Hugo's description of Marius's romantic interest in Cosette...and similarly made me want to puke. ;)
From what I read, I'm pretty sure this reviewer was spot-on in his synopsis of the book. I'd love to read an abridged version (which incidentally is the same thing I'd say for my favorite story, Les Miserables).