I think it is probably true, not from my experience of how people react to my looks as I think I have some 'interesting' features , but I think part of the reason I find men who other people say are ugly/uncool, attractive, is that this makes me think they are more likely to be nice people. I react against conventionally good looking men because I hate arrogance and feel they are more likely to be arrogant.
It is sad that women avoid talking to other women who are attractive because they don't trust them or are jealous of them. Lots of people think that 'if I looked like that I'd have nothing to complain about', but this thread just shows that everyone has their share of problems whether they are good looking or not.
My DH has said that he 'chose' me because I was slightly 'different' because this made him think I would fit in with him and his 'slightly different' friends and he would be able to relate to me better than someone who was really good looking who he would have to be on his best behaviour with all the time. We have always completely been ourselves with each other and not tried to be more 'impressive' and I think that has benefitted our relationship and we feel happy and relaxed and contented together.
I don't feel my life would be better if I was better looking. Good job, as I'm not haha! But the key thing is being happy with yourself, your whole self, which includes more than your looks. Also to look for more than looks in a partner if you want it to be a relationship that you feel happy in, that will last. Look at how well you get along with someone rather than how good looking they are. This is something that it takes time to learn about a person, so jumping straight into bed with them might not be the best thing (for anyone who does this and then regrets it because they weren't only after a quick shag). (Not that I have followed this advice in the past myself, what a hypocrite! But if I went back in time I would do things differently.)