I'm not a Mormon and think their theology and some of their practices are a bit wacky. But overwhelmingly Mormons as a group are some of the most decent and honorable human beings on this planet. How many 19 year old would be willing to sacrifice several years of their lives to go a mission? And they are sent all over the world. Some to not very nice places. Few in this crass and shallow world show such devout commitment at such a young age, or any age.
I tend not to judge a person's beliefs, motivations or intentions -- I can never be sure of what goes on in another person's heart or mind -- but I can and do judge behavior. Mormons are good people.