This was not what I expected. It was effectively one room in a mini-hotel, run behind a residential apartment block. There were at least 8 rooms in the "hotel block", each run using electronic key cards for entry to internal doors and providing power, and actual keys for the external doors. We were greeted at the door by someone other than the advertiser - we were told it was "a friend", but it turns out that she was one of 4 co-owners of the hotel enterprise, run as AirBnB presumably to avoid tax. We were told that there were some issues with locals in the apartment block who dislike foreigners, and what to do in the event that we encountered them (however, I now understand that this was not such a dislike for foreigners but rather people concerned about a hotel being run in their block - I'm not sure I would like it much either; as it happened, we experienced no problems). We were then taken to the basement to the office (read, basement reception, equipped with electronic key card machine etc) to register.
As for the room - it was immaculately clean, and it did feel like staying in a hotel. However, the "queen double bed" turned out to be two single beds pushed together (which I find irritating). It definitely has an industrial theme, to the extent that lighting was either full scale spotlights or pitch black - nothing really inbetween, Rather weirdly, there were no spoons to help with the coffee making facilities. I used the arm of my glasses to stir my tea. Again - beware that this is a hotel room - no kitchen facilities whatsoever - the info is there if you look but I admit I only assumed that there would be a kitchen because I thought it was an apartment.
All in all - if you want a cheap and clean hotel room, this is a possibility, but don't be fooled (as I was) about what you are getting.