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
We visited Mozen for their New Years Day champagne brunch. For $69 the spread was a bit thin. They offered a choice of main entree, which I opted for the big, buttery diver sea scallops. In addition to the entree there was a small buffet for grazing. The choices were good, but quite slim in comparison to the brunch pricing. Choices included ginger soy noodles, shellfish, charcuterie selections, veggies, BBQ pork buns, shaomai, and best of all the sashimi. The sashimi was most definitely the highlight of the meal.

For an extra $35 they offered bottomless Perrier-Jouet, but they were out, so they substituted Veuve Clicquot. It was a nice and logical substitution, but I like PJ better and that was part of the allure that motivated us to opt for the Mozen brunch.

Service was a struggle. I think our server must have been new because we had to ask for every drink refill and on occasion we had to ask multiple times. It took 4 separate requests and an hour to get drawn butter for dipping the crab, which arrived 45 minutes later.

For a little more, I would have preferred to go to the ridiculously over the freaking top champion of all Vegas brunch spots, Bally's Sterling Brunch, where we would have had 10x the choices of obnoxiously decadent food and award worthy service.
Answer:
3 stars