Besides, the developers put some great effort in their support service. When I finished the configuration of the module, I noticed that it was impossible to change the font type, which is by default one without serif. So, I filled in the form at the support page on the developer's website, and I got a very useful reply within a few minutes. They sent me a new file with the desired font type.
So, I'm really happy with the extension, but even more with the good support.