Great unit for the money. Installed it about a week ago and the GPS and XM Radio load quick, but I mounted the antennas on the roof. I have a feeling people that are complaining about it taking a while to load are mounting the antennas inside the car which of course is going to cause problems. Only complaints are that the Auto Dim feature doesn't always work at night, but you can manually adjust (still a pain) and you can't adjust the tones using the front MP3 port. While the input works just fine the screen is looking for a video feed to come through therefore not showing the the icon to make adjustments.