I bought this story and the new one, 'Cedrics day at the castle' for my nieces who are aged four and five and they absolutely love them. The rhyming they found fun and it made them want to read it again and again which can't be bad! The illustrations are superb, bringing the story to life on every page in a really animated style.
Also recommended are the worksheets available for download on the cedrictheseahorse.co.uk website. There are black and white versions of the art from the book to colour-in etc.
There aren't many rhyming children's book about these days so I think these ones are pretty special. Recommended.