I am personally not a fan. I like women to be women and men to be men. They can be as masculine or as feminine as they want and thats fine, but being operated on to be changed just isn't right, by all means they can do it if they really want it, but personally I don't like it.
I wish I was born a female, and have for a very long time, however I would never get a sex change as I know in the end as feminine as I would be and as a woman, I would still have been a guy to begin with. As much as I hate being male forcing a change like that won't do anything good for me.