I love how accurate the costumes were, compared to the 1995 Colin Firth version. The Bennetts weren't rich, so they had to make do with dowdier, outdated hand-me-down dresses that looked more 1790 than 1800s (lower waistline, dull cotton dresses compared to Miss Bingley's fashionable empire waistline satin gowns). Their house was messy and a little dirty, which is realistic since 5 teenage girls live in there and they only had 1 or 2 maids, and they did a lot of work around the house.
The 1995 BBC one had them living a little too swankily for a family that's a little above poverty (genteel poverty) and the sisters all had dresses a little too pretty than what they could afford. I just thought that Mr Collins was better in the 1995 one, all bumbling and clueless and too apologetic. The 2006 one was far too serious and creepy.