The Ashton has some exquisite parts to it and is beautifully constructed. My only reservation is that when Robert Helpmann and Frederick Ashton played the stepsisters, they overshadowed the rest of the ballet, in my opinion.
This is a review of the Joffrey in the Ashton "Cinderella" by Cygnet which has a lot of description detail:
This is a thread about comparing an older video of the Ashton "Cinderella" to other choreographers' versions, but Kudelka's wasn't mentioned:
Perhaps some audiences respond differently to English audiences who always warmly applauded Helpmann and Ashton in their roles which I saw on a good number of occasions.