PROS: Nice double DIN format. Has good integration with iPhone (4 only; see Cons). Good control for sound with High, Mid, Low and Sub settings (but limited; see Cons). Supports SIRIUS, but did not use because I cancelled my service due to their inflated prices and "radio" like playlists. Backup camera is nice (but.....again, see Cons) CONS: Does NOT fully support iPhone 5; no Video Integration Sound MUST be EQ'd, and although there are a variety of frequencies for high, mid, and low, there is no way to change each frequency individually. You need to pick ONLY ONE of SEVERAL frequencies in each range, and increase or decrease boost for just that one frequency. Had to install an equalizer on my iPhone, and can now EQ the unit for better sound. Sound has WAY TOO MUCH mid range output, that creates a really crass and harsh sound with the volume up loud. Changed out speakers and amps, and tuned and re-tuned both, to no avail. Device takes a long time to boot; by the time you start your vehicle and are ready to backup, the device still has not booted. When it is finally booted, it then proceeds to nag you about checking surroundings first, which blocks the view of the screen.