My PCOS was my reason for surgery. I had been logging my food intake in MFP for 7 years - and at 1300 or fewer calories a day and exercising, I did not lose. Plus the other symptoms that come with PCOS like the facial hair, thinning hair on scalp, cycle irregularity, cystic acne, high blood pressure, high cholesterol, insulin resistance/diabetes.
I have been losing since surgery - but VERY slowly - and I was told that this is due to the PCOS. I'm about 3.5 months out, and have lost 30 lbs. I don;t regret it at all - I wouldn't have lost anything if I hadn't done it. And the silver lining is that I will not have a problem when it comes to maintenance, as I have been eating those smaller amounts for years.
I was able to get off the metformin that I have been on since 2004 pretty much immediately. That alone would have been worth the surgery, as I hated it and never built a tolerance to it. I felt like it cut my stomach to ribbons and I always had to be near a bathroom.
Just be prepared to lose slow and don;t compare yourself to non-PCOSers losing quickly.
I cannot lose weight which I'm told is likely because I have PCOS. I don't mean I can't stay on a diet, I mean I can eat very small amounts of food and not lose weight. Supposedly surgery will change hormones enough to allow weight loss, but I'm terrified that I will have surgery, eat next to nothing but still not lose weight.