After looking all over the internet for a good hotel in Zürich, we settled on the Alden. The location was perfect, the staff kind, patient, and efficient, and the room was fantastic. However, while we stayed here (26 to 28 July), there was a massive heat wave in Zürich (all over Europe in fact). The temperatures soared to 36ºC (about 104ºF for my American friends), and it was unbearable. We turned the AC on full blast, but to no avail. After asking around, we found out that they had turned the system off because it was too hot outside. Let me say that again, because saying it aloud defies belief: they turned the AC system off, a system designed to lower unbearable temperatures, because it was too hot outside. There was no local by-law, even though that's what they told us. They were simply too cheap. I mean, come on. I don't like that kind of heat, and to have to come back to my home for three days, and boil in there too, I was pretty frustrated.
Other than that, a fantastic hotel with beautiful rooms. But don't stay here if there's going to be a heatwave.