My girlfreind and I had the pleasure of renting Asyas apartment for our delayed valentines trip. The apartment is nice with everything you need for a plesent stay in Paris (including a small collection of French chanson cd's). The apartment is located at the foot of the hill, which is nice as you don't need to walk all the way up everytime you want to get home. In the area there's bars, with live music in the evening, and Parisian brasseries for a good lunch.
Gare du Nord is only a 15 min. walk away, and can easily be walked with trolleys (no reason to waste 10€ on a taxi that will take 15 min. anyways.)
We had a fantastic trip, thank you Asya for letting us stay at your place :-)