I've been at Elodie's appartment for one week in May 2017.
Positive points: Good location (close to Opera Station, which links the region with a lot of subway lines, including RER A to Disneyland), good bed and good shower. The Elodie's team always gived us assistance when we asked for.
Negative points: Air condictioner and fan weren't working (we could ask for assistance but we were worried about someone stay during the day inside the appartment because we were returning only at night) and the appartment was very small.
Our bag was stoled inside a restaurant, 400mts the appartment. The appartment keys were one of things inside the bag, and the Elodie's team asked for 150 euros after I leave the appartment. I know it wasn't their fault, but I asked you to consider this situation because Paris isn't a safe city and this value is very high, specially after you lose some of you things. It made me think a lot about Airbnb service, specially in cities with high incidence of pickpokets. If I was in a hotel, probably the keys would have been a magnetic card and the problem could be solved easily. I paid 80 euros after a negotiation.