I hardly watch Song Hye Kyo's shows and The Glory is probably her first show i had ever watched. I would say it was a great switch up for her from pretty roles to a traumatic role. She was able to convey the tough emotions pretty well. She is such a hardworking actress and to think that she has to move on with her real life after a difficult divorce and public-shaming period, Song Hye Kyo is definitely an admirable woman and an actress. However, i feel that screenwriter Kim Eun Sook has probably added too many supporting actors and actresses that kind of outshines Song Hye Kyo's character.
I mean do you really need 5 villians in one show. Probably 1 biggest bully and 2 bully-sidekicks so that each character can have more space to grow...get what i mean?

My favourite characters are:
Yeom Hye Ran as Kang Hyun Nam>>>>>>> A mother's love for her daughter finding a respite in Moon Dong Eun's revenge plan. She's pitiful and yet adorable at times.
Park Sung Hoon as Jeon Jae Joon>>>>>> Very convincing and wholesome character
Jung Sung Il as Ha Do Young >>>>>> Kim Eun Sook could have developed the complicated relationship between Ha Do Young and Moon Dong Eun.

The character which i feel most redundant in this show is none other than
Lee Do Hyun as Joo Yeo Jung.
Lee Do Hyun seems like a great actor and i feel Lee Do Hyun's story (in The Glory) can stand on it's own in his own new Kdrama. But why does Kim Eun Sook put in Lee Do Hyun for the Glory. Moon Dong Eun does not need this person to complete her revenge plan. Most of the time Lee Do Hyun looked like a high school kid in the show. It was so hard to visualise him neither as Moon Dong Eun's partner or a doctor. The role just doesn't suit him. Kim Eun Sook could just take him out and develop the relationship between Moon Dong Eun and Ha Do Young. Ha Do Young's character was so wasted.

There was zero chemistry between Song Hye Kyo and Lee Do Hyun. I don't feel that they love each other. It was awkward.
I hope casting directors stop throwing in handsome faces to boost ratings....at least consider their chemistry first...

Moon Dong Eun needs a more matured and clear headed partner to support her instead.

Kim Eun Sook goes on and on about how Song Hye Kyo inspires her for the story and yet in the end, all the villans in the show outshined Song Hye Kyo.....T_T

I don't think the ending was satisfying or well played out.

But thanks to Lee Do Hyun and Im Ji Yeon's dating news that give more spotlight to The Glory.