Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

The Decepticons play the Autobots like a used violin and demostrate Cybertron's AI still has a long way to go. While LaBeouf and Turturro act as if this movie is their character's last episode --- and they really over-act in this movie which is lacks the charm of the original TV cartoon.
Negative

We had to buy a new lunchbox for our son after 2 months (a different brand, machine-washable) because this one is way too hard to clean. I have turned it completely inside out, scrubbed between all the cracks, and still food is stuck in the seams andthreads. It is very durable, but we can't get rid of the smell or stains with a reasonable amount of effort.
Negative

I received these and they were defective. Months later, the company has continued to dodge me and still has not processed my refund. Their shipping costs are 6 times what it cost me to return them for no refund. Amazon, where are you to remove CMMA Accessories ? Don't let their 3 or 4 star overall rating fool you !
Negative