A.H.
I had it done in March and have my x-ray to confirm blockage on Monday. Before I had it done I was also worried about the risk of pregnancy after Essure, and learned that IF you wait to stop other birth control until after they've done the x-ray to confirm (which they do 90 days after the actual procedure), there have actually been 0 cases of pregnancy. The only cases have occurred when people had the procedure done, stopped using other birth control, and then found out that they in fact weren't blocked. You HAVE to wait to stop taking your pill or whatever until after your x-ray. Which they tell you. Can't imagine how people wouldn't follow those instructions.
Anyway, easy procedure, easy recovery, no hormones, awesome effectiveness against pregnancy - I'm very happy I had it done.