OK, so this is minor Dickens. The plot is even more rambling than usual, the title character is unappealing... I know, I know.
And yet... if you ever cared for well written historical fiction, or only for a good study in furious crowd, do read the chapters about the Gordon Riots! It stays with you.
Not as well-known as Dickens' other works, I really enjoyed this book, too. While not as funny or masterfully written, it still has very tight plotting and good pacing.