The ease of use for my business colleagues to access information about our mail items when they are away from home office or even out traveling! This has made it easy now that we can track packages while at work remotely as well have them delivered directly into their inboxes without having an employee go pick up something offsite which would then be lost if not tracked correctly through this system!! I wish there were more options available such as being able to create custom fields/categories within your package but other than those two things nothing really stands above anything else with regards to its usefulness so far. We're solving problems by tracking where all correspondence goes since everyone uses different methods internally throughout each department; also giving us visibility over what happens during shipping timeframes (ie) how long does shipment take once shipped?