The positives: the flat is in a good location for walking around the city. There is a great little bakery just round the corner called 12 Triangles. Communication was very fast via a text chat group.
The negatives: the flat smelled and felt pretty unclean when we stayed there - there was definitely a damp smell pervading the whole flat and even our bedding and towels smelled damp/a bit unwashed. The key to the front door was a bit fiddly but communication was good and the host replied right away when we were struggling with it.
The room we stayed in was a good size with a nice big window but because of the smell I don't think we would stay there again.