I like how easy it was to set up, customize my profile with images (so that they are always there), edit information about myself, etc. The ability to see if you are already "creded" by another site or organization is great. Also having access to more info than just your email address can be helpful when trying to verify who someone is. It's easy enough people new to our software would have trouble using it in the beginning but then they get the hang of it! We use credz so we don't need to worry as much about sharing credentials between different service providers and/or apps. This has helped us save time by not needing to share our password everytime we log into something else. You could actually do this without any extra addons if you're willing to go through some pain points such as uploading all of their photos, having them create an account instead of signing in.