The flat is in fact "small and comfortable" - public transport in the city is just amazing, so we had no troubles when reaching the sights and other places. The apartment was super clean and neat, there was also a cool paper map of the city left that we happened to use. Thanks to the host.
Communication was great and fast, appreciated the self check-in.
The only thing you might wanna know about is super-jelly pillows, more like linen. So if you are fine with sleeping without them or are able to use small sofa pillows, it is not going to be a problem for you.