I stayed at the hotel for three nights by myself. Positives: clean room (not big but more than enough for 1-2 people), own restroom with hot shower, great price, great location in the heart of Seoul, free breakfast, good service. Owner even waited outside for me.
Negative: the surrounding area isn't family friendly at night. I didn't have any particular trouble but I wouldn't take my family there. Hard to find at night (english sign is not lighted; look for lighted 신태양 sign)
All in all, it was a great place for myself. I highly recommend the place. I would definitely stay there again.