I have really enjoyed some of the Cohen Brother's movies - The Man Who Wasn't There and O' Brother Where Art Thou, in particular. Some, though, like Ladykillers and Intolerable Cruelty didn't really seem to me to show the genius of the Cohen Brothers potential.
If you don't like slow-paced, violent or disturbing movies with anti-climactic endings, you might not like this movie. But the character development and casting is fantastic, and the cinematography is delicious. Favorite scenes of mine were those shot in Llewellen's trailer, through the reflection of the old TV screen.