I've had this unit for 7 months or so & I have no complaints at all thus far. I’ve only had to reset unit once, because for the sound muted on navigation probably because of something I did wrong. Overall, the unit does all that most of expensive units do hands down? Navigation is good not great but it gets you there. Bluetooth is excellent; I haven't had a complaint with any callers while even driving with the windows down. Also works really well with iPhone apps like tune-in radio and Pandora or just music from the iPod. I’ve used my MP3 and it works really as expected. I even installed backup camera with no issues. For the value of this unit, I’m very impressed with it.