I very much enjoyed my stay here and the place met or exceeded my expectations. I had read some other users complain about outside noise but I grew up in a city so am used to street noise, it didn't bother me at all. I only noticed the street noise on Friday night anyway, it was quiet the rest of the weekend.
The place was walking distance to almost everything I wanted to see and was highly accessible via public transit to everything else. The place was very clean and the host was there when I arrived, so I was able to ask any questions I had and he was very friendly and helpful.
Some reviews have mentioned the temperature of the place, I found it perfect. I was fine just leaving the window open, though I visited in Fall there was a fan available (I didn't need it).
I would certainly recommend this spot and I would stay here again if I was to return to Zurich!