With this program I found that my truck was getting dirty spots every time i stopped using it, which makes sense because it has no screen for cleaner fluid, so after about 4 months they told me there nothing wrong with the canister filters! They don't make them, just sold like junk at low prices then expect people who need good fuel economy will want these trucks!! I like its features and its ability to track and monitor my fleet. I dislike that it does not have the ability to upload to a third party system like Google Maps or Waze. There are other programs on the market that can do this. As of now, that is the only thing I dislike about the program. I use the system to track and manage my fleet. It helps me to keep track of the vehicles and drivers on my fleet. I am able to check for any issues or problems with the vehicles.