We arrived in Vienna airport much later than expected due to delays, and couldn't let Vesna know of the delays until after we arrived at the airport. She was understanding of the delay, and was able to let us in late. The room was clean, and the shower was great. The apartment has a great location. It is next to the Botanical gardens and schloss Belvedere. Overall, Vesna was a great host and her place was great.
The only minor difficulty was that there was no AC, so the room could get hot during the night. Leaving the window open helped a bit though.