Martin Scorsese did a great job on the film. His storytelling is impeccable. I like the way Henry Hill's off-screen voice gives us a glimpse of life in the crime business. Scorsese's visual style is dazzling as usual. The cinematography is brilliant and many scenes are riveting.
Music is also really well used.
There are countless brilliantly crafted sequences. The whole film is way exciting, but this part is the most dazzingly fast-paced. The cast is awesome. Ray Liotta is really cool as Henry Hill. Another cool thing is his overwhelming enthusiasm, as in the shower scene.