The ease with which I can create custom layouts without writing any code.The customer support is fast and knowledgeable. As an agency, we have many clients and each client has their own needs for different layout options. It's almost impossible to keep track of all the layouts and how they look. If you're looking for great layout options out of the box without coding or spending lots of time creating your own layout, then this is something worth checking out. We needed custom layout options for our customers. With OSource we were able to do this in less than 10 minutes.