Terrible review
Who buys this game for the single player mode?

I think the Coens make far more polished films, and that isn't a bad thing. I'd say that while the Coens have an excellent sense of humor, Tarantino's movies have more of a "slapped together" quality. Not a criticism of Tarantino, as he clearly likes his movies to look more hand made.

A defense of Tarantino
Many of the criticisms levied against Tarantino's work are directly caused by the risks he takes. He could make safer, more methodical films. But that wouldn't be as interesting. The very thing that makes Tarantino a great artist is his bravery.