Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: BEWARE: Computer slides right out the back of this holder.

Reasons this doesn't work:1. The holder is too small in length. You have to center the CPU in it and it doesn't stay centered because when you try to move the unit the CPU slides. If you have a small CPU it may be okay..but I bet it will still slide. There is nothing 'holding' the CPU in. Don't be fooled by thinking it will 'clamp' onto the CPU. It doesn't and if it is done too tight...when it slides it will scratch the CPU.2. The CPU when moved slides out the back. Not a good thing to have your system slide out and tilt..this may cause damage.3. Of the 8 wingnuts that came with it only 2 actually fit completely on. The others were manufactured with defects. I guess no one tests that part of the product before shipping. I needed to purchase my own.4. I am now looking for another one and feel I wasted [...] on this item.