Summary: A few years ago my car CD player began to malfunction, and this year it finally bit the dust entirely. So, after doing basically no research I did Amazon roulette and this is what I decided to try out. As luck would have it, it's a great device. First and foremost, it plays CDs like a dream. I'm a man who loves to own physical media, so this is fantastic. Be it a legitimate CD release or a mix cd I burned, this works perfectly.
Summary: I had a JVC unit without bluettoth before this and I think the JVC had better sound and had more intuitive controls. Other than that I haven't found any flaws with this unit. I mostly use bluetooth to listen to Spotify radio from my Android phone. I can control the basic functions (play, pause, next, previous) of the Android Spotify App when I connect my phone to this unit using bluetooth. Also the song name, artist and album of the currently playing song are displayed.
Summary: Installed in a 2007 Corolla: Sound is good, and is customizable over 5 frequencies instead of your standard treble/bass tuning. Looks pretty good too, and the ability to customize both display and key color should satisfy most reserved or gaudy setups. However, as noted by pretty much everyone else, the "dimmer" is a joke. For driving at night, specifically out of city lights, I set a custom color of the lowest blue you can get (Red 0, Blue 20, Green 0).