I found them completely misleading.
If the school is given a low grade because the SEN provision is poor, but I don't have a SEN child, how does that help me?
I've been through the whole school choosing process four times now. The last state senior school place we were offered, Ofsted rated as good. I went along to the parent's evening, saw the organisation of the taster day and read the exam grades in detail.
Ofsted rated it as Good yet the taster day for 400 10yos was a complete shambles. At the end, there was lost 10yos in the car parks, out on the roads, wandering around unable to find their mum's, no idea where they were meant to be.
Their exam results said they got 61% through maths GCSE but on closer examination, they got 75% of girls through but only 41% of boys. I have a boy.
We went elsewhere. Later that year, ofsted regraded the school as inadequate, saying that it was unsafe, bullying was rife, younger pupils were at serious risk from older pupils (nice!), the staff had no idea who was on site at any time and the leadership team had not addressed issues previously raised. Six months after that, the trust was wound up.
Good thing I used my eyes instead of listening to Ofsted.