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

Q: I ordered 3 of these. They are sturdy, comfortable, and stay inflated. The electric motor in each easily and quickly inflates and (almost) deflates them. The height also makes them feel more like a real bed.However, if you want to completely deflate them for storage, that can be a real trick. I could never deflate any of them completely, so in frustration I cut one open to see what the problem is. A design flaw allows an internal plastic flap to cover the deflation port when they are almost empty. The more you try to vacuum or squeeze out air, the tighter the flap seals the port, sealing in the last bit of air.Now I know, and there's nothing I can do about it, but I feel better after attacking one with scissors...

A: Negative
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Q: Well another one of my first dvd purchases...I found this concert very poor...it did nothing for me... the sound quality was poor, The set on stage was quite good but lacked the final sparkle, Janet's performance was glitzy... but sadly something was missing...my advice is puchase Janet's later DVDS...

A: Negative
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Q: A comfortable bed for the money. But I've had 7 or 8 of these, and they ALWAYS fail in one of two ways:1) An external seam will break, usually near the head area. To fix it, use a good size piece of Gorilla Tape (forget the enclosed repair kit) and press down very hard around the leak so no air can get out. No need to deflate or remove flock from the area, but you have to press down carefully and firmly.2) An internal seam will pop (usually in the middle) and create a huge bubble in the center. No way to fix that, unless you want to use pillows or folded blankets to level out the low areas.That's my advice. I'm still looking for a good, sturdy alternate model.

A:
Negative
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