I see the negative reviews and am unable to see a certain pattern , but as some have suggested I suspect some of the bad experiences may be due to the cabling or internet connection

I ignored the bad reviews of this player about the freezing issue because there wasn’t that many negative comments.

I tried to ignore the 15% of negative reviews on Amazon and give Sony a shot

The TV, as well I as the X700, have Amazon Prime app where I can play the same UHD material to compare.