I had two other main units from this company last year and one more and both were terrible. They were both so slow that they were unusable until parked. The installation of these devices also took all day. On the other hand, this device is a whole different beast. It's just as responsive as a new Android smartphone. The screens have always been too dark on the others I've used, but this one is insanely bright even with the sun shining on the screen. All brackets and their bores matched perfectly for the assembly. My only complaint would be that you would have to install some tiny screws to attach the device to its mount. It's very tiring and I highly recommend the Philips magnetic screwdriver. Also, the head unit connects very well with CAN-BUS and tells you when the doors open and has moving lines on the rear camera when you turn the steering wheel. The sound quality is fantastic compared to others I've used and has lots of different filters as well as a great equalizer to get the exact sound you want.
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