This tool helps me calculate my expenses, I like that it allows you can customize which category or expense item gets its own line so this makes things easier when calculating for tax purposes as well! The only thing i dislike about ACG (Aircraft cost calculator) would be if there was more options available within different categories such as fuel type. For example; what are some other ways we could categorize our flights? It's very helpful especially since they have an online version too where all information needed goes directly into one place instead doing multiple sources etc.. We use their software at work quite often now due to how easy everything works together through out accounting department/department heads who input data from flight logs & invoices then send them over via email once complete!! Makes life much faster than having several people do each task individually because no matter whom does something firstly everyone has access afterwards making changes quicker without any confusion amongst team members.