We had a great stay at Catherine's flat. It's so central just between the Sacré Cœur and the Moulin Rouge but in a very peaceful courtyard overlooking the roofs of Paris. The flat is small but has everything you need. The only thing I would add would be a bit more crockery and maybe a microwave oven/grill (there's a microwave but no oven). The Quartier Montmartre is really bustling and full of great wee shops and boulangeries! From the flat you are 15 minutes walking distance (uphill!) to the Sacré Cœur and 5 minutes (downhill) to the Moulin Rouge and Pigalle. We had a wee problem (nothing serious) when we arrived and Catherine immediately responded and sorted it out without fuss. I would be happy to return there any time. I so much prefer my own space to a hotel room and for the same price it's a no brainer as far as I am concerned!