Review on GeeekPi 4-Layer Cluster Case for Raspberry Pi 4, with Cooling Fan and Heatsink, Acrylic Rack Case Stackable for Raspberry Pi 3B+, 3/2 Model B by Oso Mears

Fan and heatsink work great. Overall, the stackable open rack design is very functional and has greatly improved cooling for my Pi setup. BUT. Since then I've had three plates break with little to no movement. They're just incredibly fragile. Also, the mounting hardware is incredibly poor. My box had the correct nuts/bolts, but not all. Some hardware is the wrong size or thread. Very strange. The stands themselves are great, the fans work reasonably well, the heatsinks are adequate, like most Pi heatsinks, and overall the kits did what I wanted for a very low price. Overall I give 3/5. Two of my plates are completely broken and now unusable and the third is missing a corner. I didn't have any gear so I had no problems.