Overall, the house is very nice, and it is finished to a good level. Parsons Green is a great location. The house has glass doors in the back that allow you to open up the house to get a nice breeze throughout. The patio is a little bit of a mess, but is an okay space to sit when the weather permits. There are ample work spaces throughout the house, most of which are combination bedrooms.
Be aware that this is a bit of a hike from the green and from the tube station -- it'll take about 15 minutes to the tube station, which would be difficult with small children or in months when it's cold or there is a lot of rain.
The owner flags the vast majority of drawers and spaces in the house with "private" tags. It's a bit unwelcoming -- particularly in the kitchen. The one cupboard where there were glasses and plates for AirBNB use wasn't broken, so it was difficult to open and close it -- which added to the frustration. I appreciate why the owner is doing this, but I question where this really should be listed on AirBNB if the owner is that concerned with people accessing the vast majority of the space in the house.
While we were staying, there was construction happening at the house next door. While this fact was clearly listed on the booking description, I did not appreciate the level of noise that would be coming through the shared wall. Luckily, on most days the construction crew did not start until after 8:30 AM, but there were points in the day where it was almost impossible to be in the house because of the construction noise. Not a big deal if you are tourists in London, as you'll likely be out of the house most of the day, but if you are looking for a safe refuge to relax, this probably isn't it.