Excellent apartment in a perfect location in the Marais area, in a very characterful building. On a main road with lots of lovely shops, cafes and bars, I found it to be quiet ( although it was December and I had all the windows closed), as well as comfortable and warm and l appreciated the recent modernisation. In my opinion ideal for a couple, although 4 adults might be a bit cramped, however it would probably be manageable for a short stay.
I would highly recommend and would love to return.