First they gave us the wrong room (a room for 1 person, we were 2), after complaining they exchanged it. The new room was OK, nothing crazy nothing bad, decent size, wifi working well,etc. Unfortunately, the room was not cleaned not even once, and we were there for 4 days!!!! Their "excuse" was that because of corona they are not cleaning as much as usual. But especially because of corona they should clean the rooms more frequently! Another bad thing is that you have to leave the key in the front door every time you leave the hotel! Since there is only one person working at the same time, you have to wait before leaving and once you are back, just for having your keys back. The location is not great, unless you are keen about visiting the Prater. But for everything else you need to use public transportation the entire time!