Olivia is really helpful and a nice hostess. If you have any questions you can text her any time.
The apartment is just beautiful: big, bright and cozy. Within a building from the 19th century with iconic little french balconies and high ceilings. The furnishing is comfortable and stylish.
I really enjoyed staying there. Despite being located at a busy street it was quiet and a nice place to retreat. And cause of the central location it was easy to reach all the tourist hot spots and famous sights. For example Sacre coeur lies within 10 minute walking distance.
I can only recommend to stay with Olivia. I'd definitely do it again whenever I get back to Paris.