From what i've seen and experienced, most people in blender are using rigify or auto rig pro to rig their models and fewer and fewer people rig their models manually. EZ Controls is a flexible solution meant to assist and empower those who choose to rig manually. EZ Controls gives you a flexible range of options without being bound to a given automated template, you can make any armature shape or form that best suits your needs and once you've finished weight painting, you can use EZ controls to add advanced features to your own rigs such as control shapes, IK-FK blending and snapping if you need it