We loved our stay at La Mondaine. The location was superb, very easy to reach from Place de Clichy and Blanche metro stations, lots of restaurants, bars, bakeries in the area. The service at the hotel was so so efficient and helpful, the staff were very polite and the 24hr reception is a great feature and allowed us to check out very early on our last day.
The decor of the rooms is warm and dated (in a good way), and the mirrors on the walls are very cool.
I really recommend this hotel, it is very reasonably priced for Paris and will make you want to go back!