Yes, we moved and the closest school wasn't highly rated! Couldn't walk as far as the next closest school and it was oversubscribed anyway.
Our head left suddenly, he realised his poor leadership was being uncovered and jumped ship. Had an Ofstead, while we had an interim head, that put us in special measures, wasn't a surprise.
New head came in for the beginning of the following term, has been here under 2 years and has turned the school around. Had an Ofstead person in very recently (comes approx every half term to help and instruct) and they are rather impressed. They are looking for the school to be rated good by spring/summer next year. This will be about 2.5 years after the bad Ofstead.
In the last 2 years we have only had 6 teachers leaving. 2 because they moved away and the other 4 because of their teaching (encouraged to go possibly). In a 2 form per year entry that's not too bad.
Our 'new' head has made massive changes and they are already having noticeable effects. Our test results last year were above the national average and they are looking to improve them further next year. It also helps the head is an ex pupil and holds the school dear, she has said she is going to make it the best school in the town from the day she started here, she may well manage that. She has tackled all sorts of things, ranging from bad teachers to SEN and EAL provision to children's bad behaviour and many things in between.
It depends what is happening in the prospective new school now for how it will perform in the near future, what measures have been put in place to change things. Ask what the school is doing to improve.