I was only in Seoul for a couple of nights and this hostel acted as a decent homebase. It's clean and stylish and the rooms are a great size for the price. The amenities are also great, with private bathrooms and televisions. However, while it looks like a hotel, it's still a hostel, so the walls are thin and you can hear toilets flushing/TVs playing/people talking pretty easily. The bed was also spectacularly uncomfortable, just a step up from sleeping on the floor. There are some bars in the area so it was a little noisy at night, but you can't hear any of the noise from the busy main road a block away. Still, the service was good (when they were around) -- my flight got in late and they stayed after closing the office to check me in. It's also very convenient for taking the airport bus, and it's close to the subway.