Disclaimer: I had never slept in a hostel, let alone a capsule hotel, so I may be biased. The location is fantastic. The beds are more cramped than what they look in the pictures, which shocked me a little, but still you can manage to be 100% comfortable, no doubt. Everything was very clean and everybody was respectful at sleep time. If you are expecting something fancy, you'll definitely be disappointed. You get what you pay for, which for me was a fair deal in a city like Zurich. The only thing I would actually criticize is the lack of personnel in the morning or in the evenings. 99.9% of guests won't cause any problems or emergencies so as to need someone in the place, but you never know. It could be that I'm mistaken and there's always somebody around, but it didn't look like it when I made my self-check out at 9:30 AM. Anyways, it's good accommodation overall.