This was an overall fair experience. I think the major advantage of this place is that it can accommodate 6-7 adults. I think that the price is way too high and I would have loved the place at $100 per night, but at $215 (with the very weak euro) I couldn't help myself from noticing all sorts of problems. The apartment is a converted former store with a lot of creativity - it can be exciting at a certain age, but not for long. The bathroom looks amazing but it is barely functional and dangerous for older people or people with some mobility problems. The drop off bed from the ceiling which sleeps 2 is in the former store so you can hear any word said by a passer-by or any car or Tuk-tuk. The real bedroom does not have any heating option. Another gripe is that there is only one set of keys, which makes it challenging for the 7 adults that supposedly would stay here.
The area of Paris is decent but not good by any means. There is a good market nearby. There is a youth hostel across the street which wasn't as loud or horrible as I expected and another gathering place for young crowds. One night the street was full of police cars so they kept it quiet.
We never met our hosts, but they were amazing with details, information and very prompt answers all along. We met their friend/maid? who was very very nice, helpful and friendly.