I like that my shipment history can be tracked in real time, so if something goes wrong with it or there are any issues along the way we know right away what happened to our shipments! The only thing i don't really care about from this program is how difficult it was getting started and learning all of its quirks (at least at first).
It took us quite some time but once you get used to everything they have now makes sense. We're able to track every single detail regarding each individual container/shipment through out entire journey - where it's going, when it'll arrive etc. There has been nothing negative here yet either because it seems fairly accurate compared to other programs and services out there.