I have been looking at this kind of unit for a while and at this price I thought it was worth a punt. I have to say its much better than I expected (really sharp clear screen that reacts quickly to touch/swipe etc).Set up was stupidly easy with my iphone 13 pro max and so far its worked virtually seemlessly. My only negatives are the very occasional stuttering when playing audio from spotify - but I guess thats a mobile connection issue, not a fault with this unit. The sound quality over the FM transmitter is only slightly worse than the wired aux connection which is actually suprising so if you do not have an aux connection its a viable option verses having the extra cable between the unit and the car.You have to remember that all voice commands to Siri are being received by the phone so are limited by phone placement in the car and the volume of the music that you are playing - again not a fault of this unit (I guarantee you will end up shouting at Siri at some point !).I have yet to connect the rear camera because of the cabling needed but I expect that to be easy enough - the only downside being that will make three cables coming from the unit (I need to find a nice solution without resorting to drilling holes in my dashboard) - what would be a good idea for these makers would be to produce a single cable solution (i.e one quality cable incorpotating power, aux out and camera feed)Overall, everything works well, navigation via apple maps (carplay does not support Google maps !) and Spotify have been really impressive with no lag - the quality of the dash cam footage is really good and even records audio if you want it to. On current use I would reccomend this product.