I stayed here for five nights with my family and enjoyed everything. There are many appliances to use and you can easily wash your clothes or cook a warm meal. The host is friendly and responsive too.
The only downside I felt was that the bathroom is too small, the sofa bed is slightly uncomfortable and the location was a tad bit far. An hour 30 mins from the airport and 15 mins from the nearest Elizabeth line to take you to central London. You can walk to the station but it got kinda tough in the snow.
Overall, I really liked the Airbnb and would recommend it for a family of 3. Melly is a good host and very responsive to all your queries.