So far the only thing I'd change is the rear sight. I love the sight picture, it's super accurate, and fast, but one hand only reloads and malfunction drills are a lot harder with a Novak style sight.
Not the end of the world, and the gun is fast becoming my favorite pistol, but I wish there was a bit more ledge on the front of the sight.
I must not fear. Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain.