The rooms are tired and need upgrading. I stayed in 101 - torn wallpaper, noisy radiator, damp bathroom, shoddy cleaning and thin walls & door didn’t make for a very pleasant stay. This was especially disappointing after reading so many positive reviews prior to booking.
The owners tried to offer another room but the place was fully booked.
On the plus side you can watch fairly recent movies in your room and it’s very conveniently located in Hongdae, a super cool area.