You can expect a very nice place, nice neighborhood, at a very convenient location. The apartment is about 4 blocks away from Trocadero and not very far from Arc du Triomphe.
The place is very nicely equiped. The beds (one is a sofa bed) are very comfortable and 4 guests can sleep very well. The bathroom is quite nice. The kitchen is perfect for a short stay.
I strongly recommend this place if you are interested in visiting by foot most of the Seine River and Champs Elysses attractions.
I never got to meet the host in person, but there was someone always there to answer our questions, which were basically at check-in time.