No, Austin Macauley is not a vanity publisher. Instead, they are a traditional, independent publisher that provides traditional publishing services on both a self-publishing and traditionally-published basis. They offer a good editorial, design and marketing service and pay advances and royalties on both publishing options.
Unlike vanity publishers, Austin Macauley does not charge authors for their services. Their aim is to publish quality books and to provide the best possible service and support to their authors. The publishing house has been in operation for nearly 20 years, and it has published thousands of books in multiple genres since its inception.
Like any other publisher, they are selective when they select manuscripts for publication and there is no guarantee that your manuscript will be accepted. Authors should therefore bear in mind that the submission process is highly competitive.
For further information, you may find it helpful to visit their website https://www.austinmacauley.com/ where you can find out more about their publishing packages, royalties, and other information.