Has anyone tried hair transplantation??

I have a lot of thick hair at the back of my head.

I have hair loss on my bangs and crown area ㅜㅜ

So, I am very interested in hair transplantation.

Has anyone tried it?

They say Lee Seung-gi did it.

I can't even ask...

I am curious about the severity of the pain and how long the recovery will take.

Please let me know if anyone knows.