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

These are only meant for use as temporary or guest bedding, but I've been in a situation where I am using this item daily as my bed for over a month now. I am a large person. It has held up beautifully. I add air maybe once every 7-10 days. The flocked top is great, holding sheets in place. It is so comfortable, my back and general body pain has improved dramatically since using it! I suspect that when my permanent bed arrives, this little bed will serve long and well as guest bedding.
Positive

The title of this video mentions Argentine Tango. Unfortunately, what is being taught on this tape is not authentic Argentine Tango. Not even close. It's ballroom tango. There is a huge difference: in music, style, steps, posture, etc... Don't be fooled by ballroom instructors trying to teach Argentine Tango. The only authentic instruction available on the market comes from authentic Argentine instructors from Buenos Aires.
Negative

I was a bit skeptical when I purchased this CD. But my 2 year old is a huge fan of the show, so I took a gamble and that CD doesn't owe me a nickel. It is just as clever as the TV show with the same format. The new songs are entertaining for both of us and the old stand bys are there so he can sing along. It is terrific. The only problem is there is only one "episode" on the market. Please hurry and make another one!! I think we know this one by heart!!!

Positive