We stayed at Heidi's place for 8 nights. The place was as pictured, and the location, while not exactly central, was convenient for us.
We never communicated directly with Heidi, everything went through an agent. The responses were mostly prompt.
When we arrived, there was only a single nearly empty soap dispenser and one extra toilet paper roll in the apartment, not enough for 8-night stay. We had to get more ourselves (luckily we didn't arrive on a Sunday), which we were later compensated for.
The first morning one of the curtain rails came down. We agreed that this will be fixed after our stay. The television set, which we didn't use at all, looked damaged as well.
In summary, our stay at Heidi's place was alright, but many small things made us feel that, in comparison to most other Airbnb places we had visited, not too much effort was being spent on maintaining the place.