I have really struggled with U, but I thought ugh! The noise you make when you eat something you don't like!
Something I have realised since baking so much more, is the old saying, 'you can please some of the people some of the time...'. Not everything I make appeals to everyone, but that doesn't mean it's not good, just that everyone has different tastes. So I don't get disheartened when some of my tasters don't like something, and nor should when baking.