Pro-tip up front: if you want to do your luggage early before check in, make sure you message the guesthouse in advance. There is no regular reception.
This is a very well organized guesthouse. It's a few minutes walk to the subway. Restaurants, bars and shops all within two blocks. They have fancy bidet toilets that can dry you with warm air. Foot massage machines are free to use and great after a long day of walking.
Downsides:
- the coffee that comes out of the coffee machine is truly terrible. Instant coffee pouches would actually be an upgrade.
- the men's 4th floor bathroom is a bit cramped. Im not a big guy but i had to open the stall door to sit down. There's only one sink. It wasn't a huge issue as the bathroom wasn't busy when i used it, but at peak times could be a problem.
- the hostel conveniently provides your a code for your locker and shoe locker on your key card. It's the same code for both. They leave these key cards in a self check in cabinet. I know Korea is a high trust society, but anybody can get your locker code by either looking at your keycard before you get it, or looking at your shoe locker if you left the code set on it. And the lockers on the 4th floor are accessible to people not staying at the guesthouse. So if you are paranoid, bring your own lock with you.
Overall, this was a great guesthouse for the price. I was never more than one bus or subway ride to everything in the city. Highly recommended.