The user interface is very intuitive when it comes down do creating invoice templates in multiple languages (English & French). Also I like that they offer support at reasonable prices compared with other providers out there! Nothing really - we have been using this service since 2016 so far no complaints about their services yet! We used the INPOSIA eInvoicing Services for the first time for an international project in 2016. In the beginning, the service is very good and the INPOSIA support team is very helpful and always willing to help. The service is very good and the INPOSIA support team is very helpful and always willing to help. The eInvoicing is a very good solution for our international project.