Yes, SEO Writing AI is considered to be a legitimate and reliable tool. It has received a relatively high score from an algorithm based on data collected about the site on the internet. This includes the country in which the website is hosted, if an SSL certificate is used, and reviews found on other websites. However, like all tools, it may not be perfect and user experiences can vary. Some users have reported positive experiences, praising its speed and ease of use. Others have reported issues with customer service and discrepancies in word count deductions. Therefore, it's recommended to do thorough research and consider multiple sources before deciding to use this tool.