Klaus is a fantastic host. He was flexible with our check-in time and very understanding when we had a disruptions with the trams and metro on our journey from the airport. The apartment is stylish, quirky and very homely. There was complimentary prosecco and beer in the fridge, which my friend and I enjoyed. We went for our 22nd birthdays and had the most incredible time! It is the perfect place to stay for a long weekend. It is approx a 10 minute walk (a very pretty walk) from the centre of the city, and the tram is also very close if you don't feel like walking. The flat had everything we could've wanted, including netflix which we used for our (hungover) quiet night in. Would recommend to all of my friends and definitely go again.