I wanted to watch this movie a second time, immediately after it ended. Pure cinematic entertainment. I think the proper phrase is, "a rollicking good time". I found it to be a genuinely funny, earnest homage to the spaghetti western (even seeing it referred to as a "kimchi western").
Aside from just being a lot of fun, the settings and cinematography are great, the score is perfect, and I really loved The Bad and The Weird (I'm not sure I ever really felt like I got to know The Good very well, but minor complaint).