This place was great for the two of us for a one week stay in Paris. The location is ideal and the apartment had almost everything we needed for our stay. Check in was seamless, and they even accommodated our delayed flight (24 hour delay). The apartment is as shown in the photos and was newer and cosy. We loved the kitchen and unique use of a smaller space with the loft bedroom.
A few things to note for future travellers: we needed to purchase certain essentials for the apartment, so keep this in mind when grocery shopping. We needed things like dish soap, dish cloths for washing, coffee filters, laundry detergent, bathroom essentials (soap, shampoo, toilet paper - since we were only provided 2 rolls for the whole week). This was all easily purchased at the grocery store. There is one across the street but it was closed for renovations the week we were there.
There are 5 steep flights of stairs with no lift - so be prepared to climb a lot of stairs. It was not an issue for us whatsoever, but if you have mobility issues It may be a problem. The poor state of the stairwell and common areas had us nervous upon our arrival, but the apartment itself was great so it was not an issue.
My husband is over 6 feet tall and hit his head a few times in the bedroom loft and had to climb down the bedroom stairs backwards. Also not an issue for us but something to keep in mind.
The bathroom smelt very musky (mould) but we kept the door closed the whole time and we did not smell it in the apartment, although we needed to air out the apartment when we first arrived.
Other than that, we really enjoyed our stay. Guillaume and the other staff we dealt with were great and very helpful. Wifi was excellent. Location was great. I would recommend as long as the issues i mention are not of concern to you.