This apartment is located right next to the Gwangjang Market where you can buy Korean street food for a very cheap price. It's also very close to the train station and bus stop. You can easily travel to Dongdaemun as well as other areas. It was very quiet at night so I was able to sleep well.
The room was very spacious and had great water pressure (yes, great showers!) It comes with a desk, fridge, kitchen, and AWESOME front load washing machine (not like the crap top load washing machines you see in other hotels). You can watch all sorts of Korean TV shows for free.
Before making the reservation, I had a number of questions to ask and Mr Lee (the owner of this apartment premises) responded very quickly. When I arrived at the place, he carefully explained how to get in & out of the building, how to request for amenities, etc. I ordered a number of things online as well which he was happy to receive on my behalf. The building doesn't have an elevator but it didn't impact me at all because Mr Lee carried my suitcases upstairs & downstairs. He was very kind and helpful.
To conclude, I would 100% stay here again.