We really loved the apartment. It's conveniently located not far from the city center and it's very stylish and quiet. Manfred was lightning fast to respond and was extremely polite when we suddenly got him a call at 7 am in the morning while checking out :)
Thanks to two bathrooms (one is en-suite), the apartment is a perfect choice for 2 couples or parents+children.
Some things to keep in mind: (1) as the building is under renovation, the elevator does not work although this was not a problem for us; (2) there is no kettle in the kitchen but there is a coffee machine; (3) the corner bedroom is quite cold so you may need some thermal clothes to sleep comfortably there.