Ladies, which district is the most convenient to stay in if I'm coming to Seoul for cosmetic procedures?

Hi, I'm Hong. I'm planning to go to Seoul this year for a small cosmetic procedure. I've heard there are a lot of clinics in Gangnam and Apgujeong, but I have absolutely no idea where to stay. Have any of you ladies been there before and could share your experiences? For example, how convenient is the transportation? What are the restaurants like nearby? Are the clinics really that concentrated?

I mainly want to get some information, and I might get skin treatments, but I haven't completely decided yet. So I'm looking for a place to stay that's close to a clinic but not too expensive. Some people say Gangnam is crowded, while others say Apgujeong is more upscale. My budget isn't very big, so I'd like to hear everyone's honest opinions.

Also, if I'm going to stay there for a few days, are there any recommended activities around the area? I don't want to just wander around the clinic area all day, haha. Looking forward to your suggestions!