I like this brave post by Jess Forte
It is never easy dealing with criticism. Certainly we will never be able to please everyone. I would hope that if someone did not like what we have written, they would be able to give us some helpful tips about what they think would improve the story (from their perspective). These ideas may or may not work with what we are trying to do, but it at least gives some guidance as to areas to potentially improve/develop.
Having said that, there will also be people who will want something different from what we want to write. I had one beta-reader suggest that my books weren’t funny enough for her. I guess, given I am not particularly funny, that means she would be better off reading a different author. We can’t do things that aren’t natural to us (and forced humour is dreadful :).