Enjoyed our stay here - the hotel seems to be brand new (the rooftop lounge is still under construction) so the rooms and lobby etc all seemed to be in pristine condition.
Also really good to have a king bed, even though it made an already tiny room even smaller. We genuinely struggled to find enough space for our luggage to be laid out - ultimately worth the tradeoff I guess, but a little more space would have made it perfect.
The hotel is pretty well located - somewhat on the edge of Myongdong, so it's a bit of a trek to visit the markets and such, but on the plus side, it's walking distance to metro stations on 3 different lines and the Dongdaemun Design Plaza. It was also only a short cab ride from Seoul Station, which made it convenient for the Airport express and KTX trains.
Another minor criticism is the new self-check-in system they introduced. QR codes on the lifts and passcodes for the room locks are all very high-tech, but a simple key card still feels much simpler to use. And making guests enter all the check-in data manually felt tedious, especially since the booking number I had wasn't recognised and needed staff to manually intervene anyway)
That said, it wouldn't stop us staying there again