Andrea's studio, tucked away on a quiet block on Île St. Louis, is a marvel, a true gem. When my partner and I arrived for a week's stay, it was immaculately clean and comfortable. The space is small but very, very well thought out. With plenty of clever discreet storage space and loads of natural light, the space feels bigger than it is.
A few tips for your stay: while there is just enough of a kitchen to make a simple meal, don't plan on doing much cooking here (there are plenty of great eating options a short walk from the place though). Also, watch your head—it's easy to bump on the angled ceilings.
Andrea and her husband also very helpful, friendly and accommodating throughout the week. She arranged for us to arrive early which was very helpful, and she came by that first day to show us some of the secrets of the apartment and offer some advice on local places.
In all, this is a wonderful option for your stay in Paris.