Part 1. Definition
You are given a review about a place. You need to provide a rating from "1 star" to "5 stars" for this place.
Part 2. 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!
Answer: 2 stars
Explanation: The writer has been annoyed in this place and has enjoyed the food. So, "2 stars" sounds reasonable for it.
Part 3. Exercise
The laundromat is next door to Firehouse Subs. It was around 109 degrees today. So we put our clothes into the washers and go outside to have a smoke. There are maybe ten empty tables out front of the sub place, we sit at the end table. As we sit we talk about if we want to go in and grab something to eat now or wait until after the clothes are done. When a worker comes up and asks if we've been helped yet. My sister says "No" then the worker says "Really??? So what you're just going to sit there and not order anything!?" then mutters "F***ing A**HOLES" Great customer service. Now we *are* never going order anything. All it would have took was a "can I get you a menu" or "can I help" or "just go in when you're ready" but no your worker was a total jerk. I mean I get it, there are almost always homeless people around there or at the least sort of shady looking people hanging around, you don't want loiterers hanging around making a mess and taking up customer seats. But it was 109, no one is waiting to eat outside... in fact there were only two people inside, hardly a rush. You would have had four more customers today if you had any sense of customer service. Now you've lost four, and our friends and family, and got this review. I can't say what the food was like since I never made it inside and have zero plans to ever go back.

EDIT- I am willing to upgrade my rating to 3 stars from the 1 star I initially gave it. The owner replied to my rating which goes a long way toward mending my opinions of the staff. Maybe one day I will get to try the food and edit my ratings further.
Answer:
3 stars