The communication with the owner of the apartment was very easy, he always answered our messages within an hour. Getting the keys was very easy too. The apartment is on the ground floor of a nice building. It was clean and looks like on the pictures. The aparment is much smaller than it looks on the pictures. We were a group of 8 people and it got pretty cozy there. But for a group of 4-5 people it's probably perfect. There were not enough chairs, plates and glasses for 8 people. Also the ktichen is very small, impossible to cook something for 8 people, but if you're a smaller group it's perfectly fine.
the location of the apartment is very convenient, there are 3 small supermarkets within walking distance and also 2 organic markets with vegan products. The tram is only 5 minutes away and the metro about 10 minutes. It takes about 20 minutes to walk into the city center.
Over all we were pretty happy with this apartment and would go back if we were a smaller group :)