I love the simplicity and easiness for the final user, specially for people that are not from the IT world. Another aspect that I love from Chamilo is that all its development it totally based on international standards and it has a true open-source license.

Chamilo is a great Learning Management System (LMS). The main key is the ease of use. When you access for first time you know how you have to navigate. The usability is perfect. The other great thing is the optimisation. With a low RAM consumption is the best LMS of the market. There are a lot of quizzes and include hotspots. You can edit images and audio from Chamilo with no other software (you only need your navigator like Google Chrome or Mozilla Firefox!). You can activate audio quizzes. And students have the possibility to send their voice. Dropbox system is great because you can send archives by groups. For instance, I use dropbox option to organise new courses. All teachers send us their class materials via this system. And we can check the reception of this materials.

It's philosophy of simplicity and usability for non experienced users. It provides a friendly entrance to e-learning while providing powerful functionalities. Maybe not to the degree that other platforms offer (Moodle, being the most popular), but I think that in many cases, less options (or less choices within each feature) means less difficulty for novice and not so novice users. And this means less time spent in learning how to manage / use this platform.