gaterxero ponders the question of whether a sprint review should cover negative topics. I'm not a fan of projecting a false front when there are problems.
My nugget: "The whole point is to bring your customer closer to the process and not delay the amount of time before they uncover the truth on their own. In my personal experiences, the most negative reviews/retrospectives lead to some of the best improvements and changes in the team."
Actually, I've had a few agile mentors who state that the best teams are the ones who handle conflict appropriately without shying away from it.
Additional viewpoints would help and he's asking for it, so feel free to click through and add your experiences and advice.