Thoughts on Pioneer AVH-P5000DVD ???? first dvd player need help

What are your thoughts on the Pioneer AVH-P5000DVD ? is it a good indash, has their been any problems with them and so on. this is going to be my first dvd player is their something better for the price? also can u watch movies while your driving or only in park?( for passenger, dont even use my cell phone wen driving) if not how can u bypass this and watch movies while driving?

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