To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I used it to play screens in the background with a live person in front of it, but there was a delay in the picture slightly behind the sound, so the video didn't match. If you're not doing something like that, then it's okay.