The apartment is cosy and clean, and the location is perfect if you want to be in the 11th, the best arrondisement in Paris ;)
My only complaint about the stay is that there was no wi-fi as described. The login given was not for an actual modem in the apartment, but for the 'community network' for Free (a local telecomms company). I could make a connection to the network but it was simply to slow to use (ie over a minute to download a simple web page), despite trying several times at different times over a couple of days. Local friends confirmed that the network is not very good, but also I don't think it's true to say that there is wi-fi in the apartment if there is no actual modem there.