I like that you can see the whole process of the message being sent through the network. This also lets the programmer know where they need to correct their errors. The program does not show you what part of the message was changed by each individual element in the network. This would be very helpful to understand the problem better. It's good to have a program that will let one build a CAN network without having to go through all the hassle of doing it manually. There are many times when I am working on something and realize that there is something wrong with the code. When this happens, I know how to fix it as soon as possible because I already have the CAN file ready to go.