Great question! I was privileged to be a part of PRO for two months last year and just signed up again this July. 🙂
PRO is a fantastic resource for learning photography! It is largely self-directed, so the amount of in-depth training one receives is highly dependent on the kind of questions one asks and the actual photography work one challenges oneself to do! 🙂
If you’re brand new to photography, I’d suggest checking out the free ebook with it’s resources. Then I’d consider signing up for PRO with the plan to also work through the Lenspiration Photography Course (a discount is offered in PRO, I believe!! 🙂 ) for the first few months of your PRO membership. Then you’ll have material to spring board questions for the Q&A sessions (James is great at answering questions!) and get a great grounding in the basics of photography.
If you’re already comfortable with your camera settings, familiar with the rules of composition and looking to use your photography for a specific purpose (business, ministry, family events) then I’d suggest diving into PRO for a couple months to see how you like it and if it’s helpful! So far for me, it’s been totally worth it! 🙂