Our stay at Heide's flat was a great experience. The apartment is spotlessly clean, warm, comfortable and convenient for all the sights in Montmartre and the metro. Heide is super-organised, efficient and clear in all communications. Check-in and check-out was very simple. We had a small problem with the hot water heating at one point during our stay, but an email to Heide resulted in an immediate reply and the problem was very quickly rectified.
We wouldn't hesitate to return to this apartment, it has been the best place we've stayed in Paris. Thank you Heide.