Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Plastic was brittle, Fans became loud, difficult to mount 3.5" HDD behind

After a few months of use the fans in this unit have gotten progressively louder. The plastic clips holding the "dust" screen onto this unit are fairly brittle. The second time I went to remove the "dust" screen from the front of this unit one of the plastic clips broke. I've purchased and used other cooling solutions (with dust screens) and none of those have broken (yet).This product did NOT come with any custom HDD mounting solution. It was difficult to mount a 3.5" HDD behind this "HDD cooler". The plastic edges which sit inside the computer interfere with the mounting of standard HDD rails for mounting 3.5" HDDs inside a 5.25" bay.