The good parts: It is a small one room apartment in a building on Mariahilferstraße, very well positioned. It is easy to reach and the self-check-in was easy. The bed was good and clean. The bathroom was also clean and had everything you needed.
The bad parts: extremely loud (it is hard to sleep because of the street noise, and missing sound insulation). The furniture and everything inside is very cheap and of bad quality. Extremely loud fridge - we had to unplug it in order to be able to sleep. We only had one medium towel each - no face towel, no rug / bathroom floor cover (it is very slippery). The wifi was barely reachable, but wasn’t enough for a video call, which I had to take on my phone, paying roaming fees.
The registration was a bit weird, requiring pictures of ids and personal data, which I didn’t see any GDPR compliance documents for. How and where are they stored? Who has access to my personal data? We were in a rush and booked it last minute, so we provided the data, in order to avoid a bigger fuss and cancelling the booking and losing our money.
All in all, it was decent and not expensive, but I guess you get what you pay for.