I like that we can use our own maps. I like that Xtrack will keep us updated with our progress. I like that we can use our own GPS devices instead of having to use the supplied units. I dislike that I cannot keep track of all of the units that we have at this time. We have over 30 units and it is hard to keep track of them all. It would be nice to be able to keep track of all of them just to be sure that we have all the units we need. We are able to keep our fleet of vehicles organized. We no longer have to rely on paper logs.