I should say it was the BBC/Andrew Davies adaptation which prompted me to read Vanity Fair in the first place. It's probably the book I return to most often to reread as there's always something new to discover in its pages.
A few others things that I think ITV have failed with -
George Osborne isn't snobby/sneery or vain enough. As much as I think the Reese Witherspoon film version was ludicrous, Jonathan Rhys' George was characterised very very well.
Another thing I liked about the film was that it bought a very different reading to the novel by concentrating on the effects of India and the Raj on Georgian London.
At the opening of Monday's episode I remember thinking how fake Rawden looked against the backdrop of Queen's Crawley and I do wonder if this was deliberate to back up they're all Thackeray's puppets to do with as he will. In fact, I do think there's a level of inauthenticity about all the sets that makes them look like stage sets, thus further underlining they're all puppets.
One thing I do like about the ITV adaptation is one of the things I like about the film version of Pride & Prejudice - the age appropriate casting.
I'm spent far too much time at work thinking about Vanity Fair, and I love that I've got an outlet for it all!