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

[EX Q]: Comfortable right out of the box. Well made. Durable. Can't vouch for the waterproofing of them, as I have learned many moons ago.....no shoes are waterproof. I refuse to test them, once you do...they never seem to be the same.
[EX A]: Positive

[EX Q]: This product requires a stereo player in which the balance is turned totally to the left. Most auto systems have that capability. However if you have Dolby or SurroundSound, it can be difficult (and maybe impossible) to play the cassette without hearing two recordings at the same time. Unfortunately neither the packaging nor the website will warn you of the problem. You therefore should think before buying. Once you have opened the packaging you may be unable to return the product.
[EX A]: Negative

[EX Q]: I do own this toy, and is a huge fan of the film, so this toy for me is very nice. It may not be very durable, or does much, or may not look like the reall thing very much, but that is why you can still pretend with it. The toy itself lights up and makes noises. Also, when you press a button on its back, its wings and legs spread out, so like the Duel Disk Launcher, it could hurt a real little kid, but not kids who know what it does. I still have fun with the toy, plus it doubles as a model for those out there who like the model Yu-Gi-Oh! products. Although not one of the greatest toys to role of the line, but still nice to play with.
[EX A]:
Positive