For me, this is located at a convenient location, easy to commute to conference, travel, walking distance to Sbahn and other travel options. The staff were friendly and very helpful answering my questions. There is also a shop by the reception to quickly buy any food, drinks or toiletries. The water, which is what most people need regularly, was expensive but there is a supermarket 2 mins walk away to go and get it cheap.
What I didn't like is the fact that the cupboard in the room was tiny to store clothes easily. While I agree that there is no need to change sheets/towels every day, the bin wasn't emptied either.
Overall, I quite liked it and would probably book again in future.