The apartment isn't that close to Zürich HB. It takes a little more than 10 minutes to walk from there, but please don't walk as there are multiple long flights of stairs and steep slopes leading to the apartment. Instead, take Tram 6 or 10 from Zürich HB and get off at ETH/Universitätsspital. Then, take a 5-minute walk along Sonnëggstrasse to reach the apartment. About the unit itself, it's a nice place with comfortable beds and sitting areas. However, the bathroom fails to meet expectations. The toilet and shower are in separate rooms, which is rather inconvenient. The bathrooms have no ventilation and the temperature of the water for the shower is also hard to control. But overall, we had a good stay.