My boyfriend and I felt very welcome at Marguerite's beautiful flat in le Marais. The location is perfect down a side street with plenty of nice patisseries and boulangeries nearby, as well as feeling like your own little residence off the beaten track.
The flat itself is so beautifully decorated and is very warm (the radiators heat the flat in no time at all), bright and happy.
Marguerite waited for us to arrive at the flat (even though we were a little late) and offered to talk us through the flat and a few local places. I'm very glad we agreed because we got some very useful tips for good nearby eateries (Hank burger is great for vegetarians and vegans).
Overall - I have to say that we had a wonderful weekend in Paris and this was, in small part, due to the great privilege of staying in Marguerite's lovely flat.
Most highly recommended - will return!