The best thing about userify, it's that you can access your keys from anywhere in any device with an internet connection! I like how easy to use this software was when we were first introduced by our IT department at my previous job where they used all other solutions out there which proved difficult for their employees who didn't have technical knowledge of computers or networking devices.
We had one employee whom couldn’t log into her computer without assistance because she forgot both passwords every time (not very common but happened). This gave us issues as well since most people are not tech savvy so having them go through several steps just trying to login would be quite frustrating especially if its something simple such using word documents etcetera.