The flat was lovely, modern and well-presented and clean - a great location (within 100 metres from Gare St Lazare) and a decent size.
It looks like we were the first people to stay in the flat: appliances had not been tested; WIFI codes were wrong; numerous lights had no bulbs; and plug sockets did not work in the kitchen. More impactful for us was not having the use of a hob nor a washing machine and with a young family, who had travelled with minimal luggage, plus the need to cook - it was really disappointing and inconvenient.
Even more frustrating was that we raised the issues the morning after we arrived, and we were really disappointed not to have the issues resolved for the whole duration of our stay, leaving us needing to find launderettes and eat out for hot meals. We are significantly out of pocket as a result as Paris is far from cheap. No alternatives were offered, nor any compensation provided, for the inconvenience and additional costs we accrued over the 5 days.

The above said, if these issues are addressed for future visitors, then we're sure that the flat will provide a good holiday home for anyone staying there, but sadly it was not a good experience for us, and an expensive one at that!!