I really loved the first 3 season they had a lot of action and romance but the second I saw the first episode of season four the show got utterly ruined for me and now I'm done with the shows. If I feel like it I might rewatch one of the first 3 seasons but for now I need to cool off due to how bad season four was. They had taken a good episode from season 3 where issei gives in to rate and becomes an incomplete juggernaut but season four took that episode and took a cheap on it and that made me really upset but other than season 4 I rather enjoyed the show.