The Fred Guest House was a one-night stay so that we could be conveniently at the Zurich Bahnhof Train Station the next morning to conveniently take the train to the airport. As such, my wife and I chose an inexpensive (for Switzerland), no-frills hotel.
The check-in process was all electronic and done in advance. This should have been convenient, but there were odd issues with verifying my personal information and with the web page itself that required multiple attempts. Once checked in, we received an electronic key to be activated by phone off their web page. The absence of any physical key might be complicated for some, and even unlocking some doors required patience.
Our actual room was really tiny, with barely any space to lay anything out. There was no desk, only a small night stand on one side, and a small open cabinet at the corner. There was no air conditioning, though a floor fan was somewhat useful in providing circulation. Our room also faced the street, so we were able to cool the room by opening the window.
The bathroom was also tiny, with nowhere to really place any clothes or belongings. If we were staying for more than one night, this would have been a very frustrating place of lodging. But as it was only one night, we just made do.
I'd recommend this place for anyone trying to be as frugal as possible while staying in a central and convenient area. But the room itself is really quite constricted, and multiple days would be tough for many.