My parents and I had a wonderful stay at Yanita's. First of all she always answered very quickly to messages. She was very flexible with our late time of arrival and her husband greeted us very nicely at the apartment, explaining everything to us and with much enthusiasm.
Apartment was spotless, very well arranged with anything we might need (even soap in the shower). The air conditioning was a real addition because it was very hot outside.
Apartment is perfectly located in Vienna, very close to the cathedral, the U-bahn and convenient shops.
Even check-out was effortless as all we had to do was leave the keys inside and shut the door.
I highly recommend staying at Yanita's as she will ensure you have nothing else to worry about but enjoying Vienna!