It has become a ritual for me to watch Kingdom (all seasons and prequel) once every year and every time I am as thrilled as the first time I watched the show. Gripping plotline supported by excellent screenplay, direction and casting. Political intrigue + survival thriller and add class war to the mix! Such a gem among Sageuk shows.
I would say this show made me start liking zombie survival thrillers (I watched Train to Busan after this lol). What I like and dislike about this show and it's spin off (Ashin of North) is that they left room for further plot development but sadly Netflix hasn't renewed it. I sincerely wish there was enough traction out there to renew the show and get closure for both Ashin and Crown Prince's storylines. I am not huge fan of cliffhanger endings that lack renewals and hence deducted 0.5 from rating :p