I like the ease of use and the flexibility of the modules. The module developers are very active in the community and are very helpful. If you are looking for a content management system, you will not be disappointed with OpenCms. There is a lot of functionality but it is easy to learn. The user experience is not as intuitive as we would like it to be. We have a few sites that are using OpenCms, and we are happy with the level of customization and the amount of modules available. We have been able to manage multiple sites using the same CMS. We are able to use the same modules, but customize them to suit our needs. We have also been able to use the same developers to customize the modules for each site. The most recent version has been a bit buggy, but it is being worked on.