We do a lot of research about a surgeon's background and what they charge for what. But when it comes to the face I think it's important to know what YOU want, not what a surgeon does. I've heard a lot of comments like "She looks like a _ girl" which means she has the signature appearance created by a certain FFS surgeon. I ran from those doctors because I wanted to look like me.
Whoever you choose, decide what you want, do the VFFS thing, talk to each surgeon and show them the VFFS pics and see if they can give you that look and not their signature look. Each doctor has their "gems", the ones who turned out almost perfect, but it's the rest of the patients who will help you decide if you can put your trust in letting the doctor decide what's best for you. Avoid "the package". That almost always results in that dreaded signature look.
Since McGinn is TS and she studied under O, she may have an edge over some but her inexperience comes into question. Still, I know girls who went to her for GRS and are very happy. One here was #5 for McGinn and she has no complaints. So it appears McGinn has talent and produces good results despite earlier inexperience. GRS is one thing, the face another, so it makes sense to put a lot of research into whoever you choose for FFS. It's the only face you have and what people see the most.
Julie