I must get credit to Ursula for very good and fast communication. She answered every question about the flat and also gave me useful advice about parking my car.
The location of the flat is fine, close to trams, buses and metro so you can easily get everywhere. If you need some grocery shop, restaurant, cafe or fast food, you do not need to go far.
What I disliked was the bed in the flat. Instead of the "double bed" there was only big couch.
In conclusion: very good price/value ratio, good location, nice host. I would recommend it.