Lots of pros: 5 stars (or even 6) on the cleanliness, same with communications from host (probably one of the best from all my experiences), the kitchen had all the amenities you needed, there were a lot of shops within a 3 minute walk, it was pretty warm even when it was almost 0 degrees C outside (except for the upper room).
A few things to consider: what you see are professional photos and in some cases maybe not the most recent. All four of us had the impression that the photos did not quite look like the actual place. The photos were accurate in the sense that what you see was what you got, but this experience really made me appreciate the power of professional photography. There were photos perhaps that were missing that might have been helpful. For example, the front door had some graffiti and the entry way (inside) was very narrow and the carpet (not part of the flat) was dirty. It would have helped set expectations. Nothing bad happened and nothing was unpleasant.