I enjoyed it. I was surprised how amazing the graphics looked, looked awesome. It did have boring moments, but generally the characters and the story kept me very interested. And also the graphics, the reflections were awesome and looked smooth as hell running full wack.
You can turn the driving on to simulation mode in the settings, find a fast car, tune it, and have some fun power sliding around too.
The story was great, but i've always loved the mafia type stuff, such as the Sopranos.
edit: I should add though, it did take me a while to finish, as when you die you generally have to drive around the bloody map to the mission location again, resulting in me giving up a number of times.