I think its a decent product for under $100, some of the reviews expect it to be a replacement for a $20,000 product thats why they dont like it. there is a lot of reviews hard to take some of them serious though as again comparing a item under $100 to a $20,000 screen and sensors is plain stupid obviously the $20,000 one better be about a million times better. I personally aint spending the $20,000 on it so the $80 is a perfect price even with a few flaws.