It presently sits at a slightly insulting 6.9 on IMDB. I think it would be safe to call this Stallone's best performance not in a Rocky or Rambo film, and an Oscar nomination for him wouldn't have been out of place.
Back when he was making $20M per movie, he made this one for $30K payment if I recall, just to get it made. He also stopped exercising and began pigging out to become a character that didn't seem physically imposing or terribly capable.
Also has one of the most underrated ensemble casts...well ever. Robert DeNiro, Harvey Keitel, Cathy Moriarty, Annabella Sciorra, Peter Berg, Frank Vincent, Michael Rapaport, Janeane Garofalo, Robert Patrick, Noah Emmerich, Ray Liotta, John Spencer, Edie Falco, Blondie's Debbie Harry and Method Man, among others.
It deserved better, critically and commercially.