I like how user friendly it is to use as well as being able to create custom fields for each of my clients with different types (eg address or phone number).
They are constantly updating their product so that makes me feel good about using them! None yet but they seem very reliable and have been working hard at making sure everything works right away when you first launch your website/app through eleBase. We're solving data storage problems by having all our client's information stored centrally within one place which saves time & money over multiple systems we would need if every organization had its own system.