Great place. Clean, comfortable, quiet, and was perfect for me in terms of location. I walked/ran everyday along Sihl river, Sihlcity mall is very close, small coffee shops and Migros and Coop are right there, and of course public transportation.
For me, to the old city and the lake were also walking distance, though I know others take the train for this.
Great Wifi and good working space, which allowed me to work very conveniently. Highly recommend.