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

Great. Gives you a pause to remember the real meaning of Christmas. Nostalgic and well loved. Without the glitz and flash of so much that modern Christmas has become. Simple and straight forward, young to old can enjoy it.
Positive

Just "assembled" the bat cave for my 5 year old. Pathetic construction and workmanship -- half of the gimmics don't work. Another pile of injection-molded plastic parts and stickers that I get to assemble -- what is this thing -- $4 of raw materials + $2 of shipping + $10 of marketing? Garbage. Shame on you Mattel, the only thing worse is the batman figures with the batarangs that take 30 minutes and a blowtorch to get out of the packaging. This batcave will collapse and die within hours of play, I'm sure of it. GARBAGE!
Negative

We were among the unlucky buyers who happened to receive a dud. The airbed had a gash at the bottom, which we patched. But it also leaked at the seams and our attempts to patch that did not work. We returned it, unslept-on -- no easy task, since we were required to return the manufacturer's box, and of course we could not get the deflated airbed back into it, so we had to find a box big enough to hold both the deflated airbed and the manufacturer's box.

Negative