For me it was, but I can only speak for me because these types of films are my cup of tea, but I was thoroughly entertained. It's got some problems(pacing, lack of an engaging final confrontation), but if you like films such as, "The Man From Nowhere", "Man On Fire", "Taken" and "Leon: The Professional" or revenge films in general, there should be something in this film that you'll enjoy.
Or, if you're just looking for some ultra-violent ass shyt or an R-Rated superhero origin film, which is what this is and don't let the trailers or anything else tell you otherwise, this film will satisfy you.