Given an English language product review, determine if it is a Good Review or a Bad Review. A good review is one where the product's review has positive tone and Bad review is one where the tone of product's review is negative.

I purchased three of these for my cats. They were not cheap. Even the one that worked wasn't sturdy enough to stay on a regular carpet even when cats would jump on top and roll around. A total waste of money. What would have been great is if it worked. Update! This item totally fell apart less than 2 months after purchase. At first, no cat tried climbing up. Eventually they did climb up it. Unfortunately, one came loose from under a kitten who was playing with me.
Bad review