First time going to Seoul for beauty treatments, which area is convenient to stay in?

Hi everyone! I'm Hua, and I'm planning to get a small cosmetic procedure done in Seoul in the latter half of this year. However, I have no idea about the geography of Seoul. I've heard there are many cosmetic clinics in Gangnam and Apgujeong, but which specific district would be most convenient to stay in? Should I stay directly in Gangnam, or are there other options nearby?

I'm mainly looking to consult everyone's experience – if you go to Seoul for cosmetic procedures, where do you usually choose to stay? Is transportation convenient? Are there any recommendations for the surrounding areas? I'm not too concerned about luxury hotels; I just want to be close to the clinic, and it would be convenient for dining and shopping too.

Also, if any international users have had procedures done in these areas, could you share your experiences? For example, the overall atmosphere of the city, the attitude of the locals, and the convenience of daily life during recovery. I'm a bit nervous about doing this abroad for the first time, so I'd like to hear more opinions. Thank you!