After staying at Sofia's for 7 nights I would recommend her apartment to anyone - even the more discerning traveller. It is an incredibly stylish and comfortable duplex set back from the street and on an internal courtyard. Perfect for couples and somewhere you would be only too lucky to live if residing in Paris. Le Marais in my view is the best neighbourhood to stay in and is close enough by to all the other great neighbourhoods/arrondissements (Left Bank too). In just a few minutes walk you are connected to all stores, bars, and restaurants that you could possibly want and are in easy walking distance to the best museums and galleries the city has to offer. There are a couple of metro stations no more than 5 minutes away.
I would only be too happy to book Sofia's apartment again on return to Paris. Sofia uses a professional service for check in and our sitter Martial was able to meet us early, and only too happy to discuss the city and make recommendations of suitable venues.
Communication with this service and Sofia was easy and prompt.
Can't really say more - if you're thinking about booking this space you should!
Thanks Sofia!