Location is in the old city, inside an active shoemaker district. It was interesting and very authentic, but there's a lot of garbage on the street. However the entrance to the appartment is clean and once inside you will not feel it. At night it is very quiet.
You must be willing to do some walking at steep angles, which we did not mind. Pretty much everything is walking distance, but public transportation is 10 minutes away if you really need it. Conveniently there are small shops and street food nearby, including a very authentic and apparently Korean-TV-famous bakery, but don't expect anything fancy.
The apartment is cozy, clean, and well equipped. The bed is huge (king size I think) and comfortable. The air conditioning worked well.