With 135 episodes, definitely not a drama that I would watch again. I thought it was well acted by all. I especially liked the fact that Heo Joon's character wasn't a squeaky clean character from the beginning but morphed into the great man that he became over time. Only the second time seeing Kim Ju Hyuk (Heo Joon) in a drama but definitely a fan of both Nam Goong Min (Do Ji) and Park Jin Hee (Ye Ji). Go Doo Shim (as Heo Joon's mother) as always is a consummate actress. I was impressed with Park Eun Bin (Da Hee, Heo Joon's wife) because there is a 20 year difference in their age (yeah, I was shocked too) but she held her own from start to finish. The rest of the cast was great. There are a couple of the younger actors (who remain nameless) that I will be looking forward to in the future. Overall, this is a drama only medical and sageuk watchers would possibly appreciate. I don't recommend it otherwise.