I hear from my korean friends that in most of these hospitals, the doctors turnover rate is high. Most will setup their own clinic. Plus,it is mass assembly line treatments, so all noses look the same lol.
So big name hospitals may not be the best place.

Still impt to find a doctor who has takes the time and attention to assess your nose to give you one that best suits your features.
I went for nose threadlift first, because that gives me an idea of how my nose will look like when enhanced so I knew what I wanted, plus it is most natural. I had my noselift for nose tip and nose bridge and I liked it very much. I saw Dr Daniel Chang, who was recommended by my friends.
