We loved staying at Arnaud's loft. The location was excellent, only a few seconds' walk from ligne 2 of the métro. The apartment is bathed in natural light during the day; it was a lovely respite from the busy streets outside. Only a few things to be aware of: the loft is on the 5th floor and the door can be tricky to open from the inside, and the upstairs space is open to below at the end of the bed, so would not recommend for small children or pets. These were minor issues at most and we would certainly stay here again next time we visit Paris - it's truly a gorgeous apartment.