The best part is that it gives me all my calculations in one place, so I can use them as needed without having to go back through code every time! This feature helps with long term maintenance of large e-commerce systems where there are many different configurations/features available (and they change frequently). Nothing really - maybe easier navigation would be helpful but this was not actually an issue while working from within Visual Studio Code itself. It has all the features which are required for a price calculation. It is easy to configure and has a lot of options. It is a very good product. It is not easy to use. It is a bit difficult to configure. You have to configure it step by step. It is a good product. We have used it for our price calculation. It is very useful for our price calculation.