We loved staying at Ariane's place! The apartment is wonderfully decorated, clean, and well kept up. The photos don't do it justice! The bed is very comfortable, the kitchen is well-equipped, and as far as Parisian apartments go, it's spacious and comfortable - perfect for two people.
We didn't get a chance to meet Ariane, but she sent us clear instructions for how to get keys and responded immediately to any questions we had.
The location is ideal for exploring Paris. The apartment is near 5 different metro lines although you could easily walk to most sights anyways.
We highly recommend staying at Ariane's place and next time we are in Paris we'd love to stay there again!