Yes his self confidence is certainly over the top but I think that means he prides himself on success opposed to failure so would be an advantage. I agree, if I don't go see DeAmbrosis I will stick with Glenn.
No he not retiring (for now) he decided against it! Spoke to them few days ago as I had my name on a waiting list in case he changed his mind (which he did!). But if he is close to retiring I wonder whether I better at sticking with Glenn. However I can only afford one attempt at IVF and with DeAmbrosis excellent reputation I am now feeling torn!