I agree with pretty much everyone's opinions so far.
Personally I haven't had any plastic surgery, but I don't have a problem with it. If you can do something to improve yourself why not do it?
Those who get slammed are those who end up like freak shows, like Victoria Beckham's post-pregnancy

breasts, Tara Reid's stomach craters or Hunter Tylo's face, especially if they keep acting like we were all blind fools and deny what's obvious.
For example I have never heard anyone criticize Anastacia's breast reduction.
And we can't even talk about those jobs who are so subtle and so good that are not visible.