This was a surprisingly tough watch for me, it's highly regarded everywhere, but it just never really hit right. For me it was unbingeable, I had to watch another series in between each season because it was such a tough slog.

It definitely got progressively better, for me it broke down like this:

Season 1 - (3) ⭐, honestly Clara was the only saving grace
Season 2 - (5) ⭐, thank God for Evil-Cycle Iruma...and Clara
Season 3 - (6) ⭐, Harvest Festival was a legitimate great arc. All the storylines tied to it were great.

For me, this show really started at Evil-Cycle Iruma, I was pretty bummed there was no second appearance in season 3, but the great harvest festival arc was a definite improvement over anything they tried before.

Just saw that it was greenlit for season 4, hope they continue the upward trajectory with storytelling.