We booked last minute and could not get the entry code for the building by our time of arrival (30min after booking confirmation) - fair enough, but living in 2022 and for a "full digital experience" at this price this should be doable.
After arrival we found that literally no staff was in the building making the bar roof top and restaurant seem very abandoned. No information about opening hours only qr codes referring to the Sonder App where it was not very straight forward to find real information about this place. Using the service chat for 2hours due to a bug left us with several requests for a baby bed and mini fridge after finally we got some reply that the request can only be met by the next morning due to late hours. We are in Spain, we checked in at 4pm and requestet at around 4.30 pm and it was not possible. I get the idea of taking extra amenities from an extra room or locker so why not offering similar for a baby bed or mini bar if you cannot guarantee staff for at least 10pm at night. So we ended up sharing a queen bed for 3 people in the first night even though we picked the hotel due to its child friendly remark on the website.
Other then that the small room lacked some simple features like a second towel hook for a double room and the motion detector for lights in the room seem random while the one in public areas don't work at all.
Either we had a bad week or even many hostels perform a better service at a lower price.
Location is really good though and overall the place is stylish, modern and clean with a nice rooftop. However, I would not recommend to stay here with kids or simply if you feel like seeing a nice face once in a while. (One of the other guests was shouting in the hallway cause his door card didn't work repeatedly).