Had a great time staying at this hotel. Stayed for 5 nights. Hotel staff was super nice,spoke English really well. Served simple breakfast; toast, cereal etc. We got the twin bed room, room was small (suitable for 2 Asian-sized girls). You need to put your bag on your bed to get clothes out but we didn't really mind. Bathroom was very clean, heated toilet seats with automated bidet.
Since we stayed close to winter, heater was on full blast. Even floor was heated. So we were always warm and toasty in the room.
There's a lift going up to the hotel (its on the 5th floor) so no need to worry about carrying luggage up the stairs. The hotel even has a washer/dryer. So you can do you laundry. Just need to pay a little extra (but its very cheap!)
Location, very near to the Euljiro(3)-ga station. Go out from Exit 7, up the stairs. Turn back, police station is on your left. Walk a few steps, the turn left into the first lane. Hotel will be right in front of you (its next to a printing shop). Its not exactly facing main road, so its not too noisy. Although you can hear sirens occasionally. Nothing that bothered us.
If you're just looking for a place to crash after a whole day exploring Seoul, this is the hotel for you. If you want somewhere you can relax the whole day in a hotel, better find somewhere else. Not suitable for families I would think as space is limited.