We stayed at Apartment Unio for almost 5 weeks and worked remotely. The internet connection was really good and we didn't have any problems.
This apartment was perfect for us, because it's right in the city center so it was easy to work during the day and go out in the evening.
There is a supermarket right in front of the building, a metro station 2 minutes away and many places to eat in the nearby.
The apartment has all the necessary amenities and a good air conditioning system.
The building is located in a crowded and loud area, but the noise doesn't get to the apartment. We could sleep with the windows open. The beds were big and very comfortable.
Communication with the host was very easy and checkin and checkout went smooth, even if we didn't meet the host.