The place itself is fine. Although it could be mentioned that the mirror between the rooms is cracked and they also refused to provide replacement soap and shampoo (while being quite a pricy place and also calling themselves smth like glamorous).
The main thing however is that the communication with the hosts is not great. First, and foremost, this is a large company, not a person. You will be asked to communicate with them (upload documents (!), state you arrival date etc) through their own website, i.e., outside of airbnb. It could be made for the sake of efficiency, but they actually lost one of our files with IDs and ended up asking us to upload it through airbnb chat. Second, in addition to related messages from airbnb, you start getting a bunch of spam from the sweet inn company to your email. And third, they reserve a deposit of EUR 250 (I did not manage to find the amount on airbnb), and it takes quite a bit of time until this deposit is returned.
All in all, this apartment is definitely far from being among the best of my airbnb experiences.