My mom gave to me in christmas two years ago. It has 8 GB of space, and today that space its almost full of my favorite music, actually i have 952 songs. I really like it, because is small, simple, and strong!!!, i let it fall so many times !! and is still alive, just has a little scratched.
In this mp4 you can listed radio, record a voice, put some videos and watch it, but i just use it for listen my music and let my mind fly. I think that the music can determine your mood, that's why i usually i listen Charly García, Camila Moreno, Los Jaivas and Bersuit, that music make me happy almost always.