controlling and securing employee AI use

I'm tasked with finding a solution that will let us control use of external AI tools and do DLP on chats etc. I found Zscaler has a product that sounds like exactly what we are looking for - https://www.zscaler.com/products-and-solutions/securing-generative-ai

I scheduled a demo but I really don't know much about these kind of products. Has anybody used this or a similar product and can comment on how well it works, how hard to manage etc?