When using any rating system, I tend to put less credence in those that are over the top positive and those that are overwhelmingly negative.
I believe the truth lies in the middle.
That doesn't mean that I would avoid the top choices or that you have to read every single review.
This is how we found Simply Delicious near Port Canaveral.
GAN is correct in understanding what I was talking about.
If the the phrase "top ten and bottom 10 percent" confused you, I apologize. My system is far from scientific or quantifiable....but it's worked well for us.
I think that's the best was to put it. It's the same for me with Amazon reviews. If they're overly glowing, effusively positive reviews, I tend to be suspicious that they are paid for professional type reviews. Similarly, I tend to ignore overly negative reviews that have little detail,about the actual product.
For example, I was looking at Game of Thrones Season 4 on Amazon. Customer gave a one star review because they clicked and paid for a clearly marked preorder for the digital version. They were upset it was only a preorder.