Most of the apartment was clean. But the whole bathroom ceiling had a lot of paint flaking in large chunks falling from the ceiling (we'd wake up every day to more chunks of paint having fallen on the toilet and shower floor), and it also was yellowing and discolored, leading us to be worried that mold might also be growing in there. It made the stay quite uncozy overall.
Also much of the cooking ware (namely pots) were rusty and not clean enough to cook with. So long-term stays will have limited cooking opportunities.
The apartment listing says it is bright and has lots of natural light, however, the opposite was true. Without using the lamps, the apartment was very dark all hours of the day. The time we spent there felt almost like living in a basement. This itself isn't a problem, but the inaccuracy of the listing's description was, which led to strong disappointment in our stay.
The location is very good, right next to shops, food, and pretty much anything. But for the condition of the flat, we don't feel it was worth the price.
The check-in process was very convenient though, and we are extremely appreciative of Nico's help in it all. He was friendly, communicative, and even helped us with our luggage.
And, we had stayed previously in another Invitee flat, which we loved (clean, bright, and stylish), but this one was quite the different experience.