I think that the extreme reactions Suviko mentioned are the very reason that only one person can decide if it's a good thing or not
I firmly believe that you have to do what makes you feel good/better about yourself and the heck with everyone else.
OTH, there's other things to consider in that you can lose sensitivity (if there was any) in your nipples for a short time or even permanently. A friend of my wife discovered this. She loves her new look but really misses the sensitivity that she lost. What would make me nervous is making sure that the Dr. is truly skilled in this 'cause there's a lot of bad ones out there judging from the pics you see!
My wife would like to be REDUCED to a D, but she values those nerves too highly to take the plunge.