We had a wonderful experience! Mathias and Michael were in communication with us about a meeting time, and they were very flexible when we needed to push it back a bit due to a delayed departure in Budapest. Mathias helped us with our bags and showed us around the flat. He even paid for 45 min. of parking for us before we moved our car to a garage, which I thought was very considerate. He went over some of the main sights on a map with us and made sure we were comfortable with the local area. Because my husband mentioned local beer, Mathias popped by a few minutes later and gave my husband a local beer.
During our stay the wireless and television service went down and Michael followed up with the provider and with us -- apparently it was a area-wide issue. He kept us informed, which was great.
Overall we had a great time. The flat is a 10-minute walk from all the popular sites and there are conveniences very close by, such as an ATM, grocery store and coffee shop (Pirates Coffee). We would definitely stay here again.