Maria's place was nice, cozy and well-furnished. She met us at our arrival at her place and was very friendly. She gave us the low-down of the house rules, suggested place to go, to eat, etc.
We did have some issues with the wi-fi, but Maria was quick to address them properly.
Our stay in Vienna was only a weekend long, which is far from sufficient to fully appreciate this wonderful city. We will be coming again!