At one company I worked for, everyone in the acquired group I worked with was Mormon. They were all chill, awesome people! My thought about it at the time was, "Damn, if Mormons are all like this, it might be awesome to join!" Not that I would, but they were all awesome folks.
A company I worked for recently had a 50/50 split. We also had one team of a dozen that was all LDS. I liked everyone of them, they were all personable and highly proficient. Management had no problems until it slipped that during the process of hiring a new teammember they had discriminated against an applicant who had indicated support for gay rights in her facebook profile. Ironically, while gay marriage was definitely being talked about, the biggest gay rights topic at the time was housing and workplace non-discrimination for the LGBT community.