We loved it here! Both Hélène and Dominique are super nice and made us feel right at home. The room is clean and the balcony, though we didn't get a chance to use it properly, is refreshing... I suggest having coffee out there and enjoying the view! The apartment is very close to the metro which is really convenient. Hélène's breakfast was great (and good fortification for a day of sightseeing) - we wouldn't hesitate to stay here again if we went back to Paris. :)
For allergy sufferers, there is a sweet dog on premises but I believe it's a hypoallergenic breed (I have horrible allergies normally and didn't so much as sniff).