Summary: hotel is under renovation. It will almost certainly look better once that's done.
Specifically: When I visited, all common areas on the ground floor were under renovation, and the rooms themselves could use some renovation of their own. Note that the listing is inaccurate: the bar does not actually exist (yet). Additionally, various aspects of the rooms are poorly maintained. For example, there was a substantial crack in the wall beneath the window in my room. The shower was sputtery and somewhat clogged. The window struggled to keep out the wind. And the sound insulation was not impressive.
All that being said: the building is very impressive, and even a little bit of renovation would really make a huge difference. The bed was comfortable, and the location was convenient. Ultimately, it did the job, I just wish the listing hadn't lied about breakfast in the bar.