We didn't get to meet Andrei, but met up with his father we was already waiting for us when we arrived. He greeted with each of us, and explained everything in the house, and made sure there was no problem on our side.
The interior of the house was just amazing! Very nice decorated, new, and clean. The location of the house was awesome! Just next to the main shopping street in Vienna, underground was two minutes by walk, and there is one supermarket just houses away. Recommended for all!