Ladies, it's my first time going to Seoul for a beauty treatment, which area is the most convenient to stay in?

Hi everyone! I'm Xue, and I'm planning to go to Seoul next month for a small beauty treatment, but to be honest, I'm not very familiar with the city. I've heard there are a lot of beauty clinics in Gangnam and Apgujeong, but I'm not sure which area would be the most convenient to stay in. Has anyone been there? Is it really as concentrated as people say?

I'm mainly looking for a place to stay that isn't too far from the clinic, so I can be more comfortable during my recovery period. I'd also like to explore the surrounding area and take walks. Can anyone share their experience? For example, how convenient is transportation? What are the restaurants like nearby? What's the approximate price range for accommodation? I'm completely lost right now and don't know where to start researching 😅

Also, does anyone suggest consulting with clinics first before deciding where to stay? I'm a little worried about what to do if I don't adapt to the pace of life in Seoul. Looking forward to hearing everyone's advice!