You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.

I bought my mberry pack from mberry.us online hoping to use it to curb my sweet tooth. I followed the directions to the letter, allowing the tablet to dissolve completely on my tongue. I then tried balsalmic vinegar - nothing happened to the taste at all except that my tongue burned a little. So I tried hot sauce - nothing happened again except that my tongue burned a lot. Then I tried regular vinegar - nothing happened again. I even tried taking a second tablet, but it still did nothing but slightly burn my tongue. HUGE waste of money. Super disappointing. DOES NOT WORK!
Negative

These are the best tasting tortilla chips I have ever had!  I have become allergic to tomatoes, but I love tortilla chips.  There is so much flavor in these chips that I no longer miss pico de gallo. I prefer to eat them plain. They also have just the right amount of heat to make them flovorful, but not overpoweringly spicy.
Positive

These cups were difficult to cap (putting the lids on securely was a comedy show) and they created a mess when used in the Keurig; the water went everywhere.  Add together PIA and MESS with an end outcome of weak cup o' Joe = I'm not a very happy buyer.

Negative