It offers the most complete visibility into your fleet management system from one interface. The mobile app is also very easy to use once you get used it. The customer support could be better though, we have had multiple issues with their helpdesk not knowing the proper department for our issue or being rude when we ask questions about how to resolve them (this has happened several times).
Keep in mind that you need to be able to run custom software if there are many devices within your fleet.