We liked the flat, however, be aware that it's a quite noisy road. The party in the road is clearly audible even on the 3rd floor, so are the people upstairs. In particular disturbing is the noise probably from a water pump whenever one uses water, eg in the night when you use the toilet. it might easily wake up your traveling companions.
The flat is sufficient for two pax, however, I wouldn't recommend to use it for four pax or if you want to cook something. As in particular
the equipment in the kitchen is not sufficient. Three aren't pans and other equipment is sparse. I haven't found detergents and tools to clean (tissues, vaccum cleaner). The flat is offered for 4 pax, however, there are only 2 wine glasses....