Thoughts on Preseed

My husband and I are on our 5th cycle of TTC and nothing yet. I am on Metformin for PCOS, a prenatal vit, and vitrex (herbal supplement)...we are going to give it until December before going to a fertility specialist. I'm desperate to try anything before getting into the expensive meds and treatments. I read about Preseed and wanted to know about success rates with it. Please share your stories about using the product!