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: I guess the highest positive I can give is that the Sands Convention Center has a lot of space. Then again, so does the Sahara.

In terms of being able to set up a convention, sure, there's plenty of room, adequate lighting is available and the temperature can be controlled. It's nice since you're next to a number of casinos so that there are a number of activities for conventioneers.

However, it's hard to really recommend because the signage and layout seems haphazard and it's a little difficult to get around. As another minus, I happened to wander here from a ground street only to be told that people could only enter through the Venetian. (Thus requiring an extra 10 minutes of wandering around only to be "let" in)

Just doesn't seem visitor friendly......which is a minus for a convention center.
Solution:
2 stars