Where is the most convenient place to stay during a beauty trip to Seoul?

Hi everyone, I'm Ying. I'm planning to go to Seoul next month for a minor cosmetic procedure and hope to find a clinic I like. I've heard many people go to Gangnam and Apgujeong for treatments, but I'm not sure which area would be most convenient and comfortable to stay in.

I'd like to ask you experienced ladies, where do you usually stay when you go to Seoul for cosmetic procedures? Gangnam, Apgujeong, or somewhere else? Is transportation convenient? Are there any supermarkets or restaurants nearby? This is my first time going, so I'm a little nervous, haha.

Also, could anyone share their overall impressions of these places? I'm mainly looking for a safe, clean place that's not too far from the clinic, so I don't have to go through too much trouble during the recovery period. Any suggestions?