We recently stayed in this apartment for a little more than a week.
Deborah's place and the neighborhood is upscale and in a great neighborhood within a very short walking distance to the Metro, shops, restaurants, bakeries, etc. It is a short walk to Le Marais and a short Metro ride to the main sites in Paris. We had multiple bakeries within a stones throw from which to purchase baguettes, croissants, crepes, etc. That made for an easy breakfast every morning.
The apartment is even nicer in person than the pictures on this site. Although in a hip neighborhood, the apartment is located in a courtyard building so it was actually very quiet. Best of both worlds.
The beds were comfortable, and the bathrooms are much nicer than in any European hotel I have stayed in (including ones that costs multiples per night of what Deborah charges for her place). There is plenty of hot water. The place was also extremely clean at check-in.
The bedrooms were of comfortable size and both come with full bathrooms. A great solution for families - plenty of sleeping space. One of the bedrooms can be configured with two double beds or the beds can be pushed together to make the equivalent of a king-size bed. Lots of flexibility.
Although we did not need it, there is a washer/dryer in one of the bathrooms in case you want to do laundry. A real plus if you are traveling with kids.
If Deborah's apartment was a hotel suite in a nice area, it would probably cost a $1,000 Euro a night. Given the location, quality, and value for what you get, I would highly recommend Deborah's place.