IVF worth it?

Wh
My SO and I have been ttc for the past 4 years. I have endometriosis (diagnosed in 2008). We have been through 10 rounds of Clomid. We've temped, charted, tested and made sex into a chore. I'm so tired and most days I feel like giving up. We've decided to take a break until after the first of the year. Then we are making an appointment with a fertility clinic in Maryland. Has anyone ever done IVF and had success? What should I expect? Was the cost worth it?