It is a great car cd, dvd, mp3, radio CD player with 7" TFT monitor. The screen and the looks make my car look like it is coming from the future. I got an 32GB SD card in mine so I can enjoy months of music without repetition. I even managed to connect my Android phone via the USB port (after some time spent playing with the configuration). I also connected a rear view camera and reversing has never been easier. The display is even clear and bright under direct sunlight so I had no problems with it whatsoever. I liked the removable security piece, but I think it's a bit too small. If you pair it up with a decent speaker system your enjoyment will never end. The only thing I found lacking is the bluetooth connection as that would really complete the system. It would be perfect when you could enter the car turn the bluetooth on and enjoy music from your phone or internet radio. But I guess for that money you get more than enough options and quality. I also prefered using the SD card to USB stick or USB connected phone because the USB is sticking out and the cable is hanging on the middle console which annoys me when shifting gears, and the usb stick's sticking out just annoys me when I look at it xD.
Regarding the CD/DVD player itself, I couldn't find a bad side to it, and really enjoy using it everyday. I'm sure that for this amount of money there isn't anything of its caliber that is better.
I can''t play music through the aux 3.5mm jack and it doesn''t recognize any usb device I plug in either, I tried to play my smartphone through it with no luck.