I don't have a child at Mottingham but I do know lots of parents there. I believe it was put into special measures a couple of years ago but has improved considerably and its last Ofsted was good. It has generally been considered the least good of local schools though, I think - Castlecombe primary for example is generally the one parents want to get their kids into, ime. But it has worked v hard to move from failing to good, so all definitely not lost! Have you visited the school?