This is a somewhat curious movie, an odd mixture between Italo western, comedy and drama (even melodrama at times!).
The main problem is that it isn't quite sure about what it is supposed to be on the whole. The shooting and fighting scences are pretty trashy. Lee van Cleef and Lionel Stander save some of the scenes although it becomes obvious that van Cleef is the wrong chap for the role of Cudlip: He's too talkative and witty in a conventional way. In the end he's torn apart between his new duty as a sheriff and his former life as a thief. You cannot even remotely compare his role to that of Sentenza or Col. Mortimer in the Dollar-trilogy.
When nothing better is on, you can probably watch this movie and get a little bit of entertainment out of it. Also see whether you can reckognize Bud Spencer. He's playing a quite untypical role which does not involve his fists.