Summary: Bought 2 fans. 1 has a spacing problem and the fan blades contact the outer casing. Considering I have to pay for shipping to return, this is bogus. I should be allowed to return to the store.
Summary: Right price but I ordered 5 units and two were defective. One was just a wire off, no biggy but the other the fan slid off the shaft on fireup and hit the casing. This was a pain in the butt as the assembly was complete. Now take it all apart again for the fan.
Summary: A cheaply made fan that will do fine if used as extra chassis fan. Don't use as CPU fan as it is not high enough quality or air capacity mover to rely on as a single CPU fan. It isn't very noisy as compared with other higher RPM fans.
Summary: It plugged right in and started working. My only complaint, and it is very minor, is the connector. My case has a LOT of fans. The fans that came with it had connectors that you could daisy chain together. I realize this was probably a custom design, which is I rate it as a minor issue.