Hello, joined Mumsnet just to contribute to this! My wife showed me this thread yesterday and I was pretty taken aback. To add a different perspective
We are current year six and I don't recognise the school described negative comments above. Our daughter had a good experience at Ken Prep. She has a great group of friends. We are really happy with the school she is going on to.
Leaver destinations not yet announced but, anecdotally, seem very strong with lots of the most academic west London schools represented.
We found the 11+ support actually very good.
We like the Head.
That all said - have we had negative experiences during our time? Yes. But after seven years we'd put those down to the usual range of stuff we'd expect to deal with during seven years.
The bullying thing is interesting - our daughter did not experience this. We did sometimes hear some reports of behaviour that didn't sound great but we also put this down to the normal sort of stuff for girls aged 10 / 11 not a school specific thing.
I do recall speaking to a Mum with a child in the year above and being surprised by how strongly she felt annoyed with the school and there was a gap between what we both assumed the other felt. Different cohorts can certainly have different experiences of a school and develop different sub-cultures.
None of this is to contradict or diminish the views expressed above - I can only share that we didn't go through those things ourselves. It is bad that you felt not listened to.
As others have said, maybe the thing to do if considering KP for reception is try and speak to parents in a few different year groups. If I read this post consdiering KP for reception I'd run a mile! Overall we were happy with our experience.