You are given a review about a place. You need to provide a rating from "1 star" to "5 stars" for this place.
One example: Although I did enjoy the food here, I was completely unimpressed (and slightly annoyed) by the overpriced margaritas. I ordered a platinum which contained "fresh" juice. It tasted like it had sprite in it, so I thought surely she gave me the wrong one. It turns out that "fresh juice" is really margarita mix on tap from the same gun as the sprite. I asked for something fresh to replace the horrible margarita and received a rocks glass with just muddled lime and a salted rim. I'm not sure it contained any tequila. Horrible! It's not that hard to make a fresh margarita!
Solution is here: 2 stars
Explanation: The writer has been annoyed in this place and has enjoyed the food. So, "2 stars" sounds reasonable for it.

Now, solve this: One 1/2 star for being near where I commute and therefore easy to get to.

One 1/2 star for having a wide variety of items.

One star for pricing, for all you can eat buffet, the pricing was good.

Minus one star for food quality - the food is not WOW, got to have more. It is more, OK I can survive on this.

Minus one star for atmosphere. This is a buffet factory. Tons of people, loud noise, dirty floors some time (too much traffic). Rush in, eat, rush out.

Minus one star - because "Meh, i've experienced better."

This is next to a shopping mall and must get some good business from there. It seems to always be busy.

Will I go again, sure, when short of time, dying for asian and I am in the neighborhood.
Solution:
2 stars