It's an interesting series from psychological views in my opinion because I found murderer's motivation in their pasts. However as a series with these leading casts, I was expecting more. Those western scenes were completely excess and made me bored sometimes.
So if you're looking for a serious drama/crime series which explains a crime story very clear and detailed to you, I don't recommend Landscapers. But if you like characters with a special sense of humor and some mixed scenes, it's fine.