Katie's main unit is tremendous. I was there for two days on business and it was as comfortable as you could ask for. The unit has windows on three sides so even though (like most units in Zurich) it doesn't have air conditioning, on one of the hottest days of the year, it cooled right off in the evening. Noise was never a problem either, even with the open windows. Katie made the whole process of getting in and out very easy. I'd definitely look to stay there again!