Eva and friends are lovely hosts, who communicate well and give a lot of tips for eateries, to get around, provide even links for the local weather etc. They were friendly and are flexible & punctual at check-in.
The apartment however, was not as suitable for me as I thought and did not meet all my expectations.
It's clean and the location is very central, so it's great to get around and do sightseeing, and there are lots of various restaurants nearby. However, with the flat being on the corner of a side road and the main road (Operngasse) it's also very noisy, especially with all those eateries around - noiser than expected and indicated by the hosts. Hence, evenings are not peaceful and sleep is only possible with earplugs.
The apartment furnishings are ok and practical. The bed is big and relatively comfy, but the pillows are old and flat, so I had to use pillows from the couch which were more like a proper fluffy pillow.
Kitchen equipment is very basic with a few plates, bowls, glasses, cutlery. A toaster was provided on the same day after I asked though which was good.
Other positives about the apartment are the portable WiFi, a good strong shower and a washing machine and coffee machine (if required).
What was missing for me was a homely and cosy feel which might also be due to it's large size and simple furnishings. It did not feel like a home away from home for me, unfortunately. But if you are looking for a centrally located place as a base to explore Vienna, then this might suit you.
In summary, I can recommend Eva & friends as hosts. However, next time I will pick another apartment which is smaller and cosier and in a more quiet area.