I had it done and it's definitely an improvement, but it's FAR from perfect. They did it all in one day -- surgery in the morning, four or five hours of sleep, and then they adjusted it and sent me home.
Pre-surgery, it was out to the right (right eye, BTW). On a good day when I'm well-rested, not sick at all, and not hungry or dehydrated, I think it's
reasonably straight. But add in any of those factors, and it turns inward. I can tell when it's happening, because I feel the slightest bit dizzy. I also realize how bad it looks at those moments, so that's when it's time to start avoiding eye contact (more than usual) and leave as soon as possible.
Like most people with varying degrees of this problem, I dread having my picture taken and I get a knot in my stomach when I call to someone across a room and they look to both sides to figure out who I'm talking to, because
I'm certainly not looking at them.
Also, even when it's at its straightest, they've only corrected it for looking straight ahead. If I have to look at someone who's beside me, I can't imagine how bad it looks, because I either get laughs or total noncomprehension.