Reviewers say 'Goodfellas' is a cinematic masterpiece, lauded for its raw depiction of mob life and Martin Scorsese's exceptional direction. Ray Liotta, Robert De Niro, and Joe Pesci deliver remarkable performances, with Pesci's character noted for its intensity and humor. The film's technical elements, such as cinematography, editing, and soundtrack, significantly enhance the story. Although some critics point out issues with character depth and pacing, 'Goodfellas' is widely considered one of Scorsese's finest works and a quintessential gangster film.