I make a choice after my several day research on GPS . however , 1 . size I have a 4-door sedan . this product be too big for sedan 's windshield or dashboard . 2 . battery usage without power less than 30 minute . even though you have a power , sometimes screen be dim . I do not know the reason . 3 . Video input for Backup camera screen although this have a video input , do not try this product for Backup camera screen . professional installer in `` Safe & Sound '' and `` BestBuy '' store installer try to install this with several kind of back-up camera as per the instruction of Magellan customer service . do not waste you time for this . except the above , I do not find critical problem . absolutely , I return this . be careful of restock fee for electronic device .