As a rule, I don't like them. I'm not one of those "big boobs or nothing" guys. Small boobs, medium, large, whatever. It totally depends on the woman. Some women are very well suited to small breasts, and look great with them.
However, if a woman has droopy boobs, and wants a little surgical adjustment, here's some advise. Don't be cheap. If you expect natural looking and feeling results, save up for the best you can get. There is a difference.
Hell, sometimes the procedure involves romoving the entire nipple, and I have seen a pair that, after the operation was done, the nipples weren't lined up properly. Talk about regret. This minor error stood out like a sore thumb....or sore nipple, whatever.