I like that it's simple to set up, easy for users who don't have technical knowledge or training in this area as well those with limited IT support resources; also really helpful when you're trying something new - everything about setting things out at first was very straightforward which made my life easier! There isn’t anything specific we dislike but there are some little bugs here &there so perhaps if someone wanted them fixed they could be looked into? We use dog tag pki mainly because our clients need certificates easily installed onto their devices without having any tech skills required from staff members using mobile phones etc.; just install once then forget until next time needed again.