Teacher: You are given a review about a place. You need to provide a rating from "1 star" to "5 stars" for this place.
Teacher: Now, understand the problem? If you are still confused, see the following 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: 2 stars
Reason: The writer has been annoyed in this place and has enjoyed the food. So, "2 stars" sounds reasonable for it.

Now, solve this instance: It's a shame I didn't catch his name, but one of the bartenders there (middle-aged man with a mustache) singlehandedly saved this review from otherwise being two stars. He was sooo nice and came to chat with us as we were waiting in the lounge, and after he heard my friend say she had a stomachache, he came out and surprised us with a concoction he mixed that he promised would cure her queasiness (PS: it worked!) But back to the review, I really wasn't impressed with this place. Our waitress was very knowledgeable, friendly, and down to earth, but the service was just not good. We waited over an hour for our entrees to arrive and other than the oysters (which I didn't have, but heard they were Amazing with a capital A), no one else seemed blown away by their food.
Student:
3 stars