Overall I felt this was a more optimum airflow solution than the traditional 120mm fans I had installed previously. The 1500 RPM fan speed didn't make any overly noticeable noise. The only downside I can see to these fans is the $20 price point. That being said, it is comparable with other brands that have quality 120mm fans, so the price point is indeed "reasonable". The fan itself lacks any LED coloring but the fan blades are UV reactive and will glow nicely under a black light.
If choosing between a traditional low-noise fan and this "Air Penetrator" fan, I would choose the SilverStone SST-AP121. The concept of being able to better direct airflow, if the case will cooperate, is a major selling point for me. With that in mind I am giving this fan the OCIA.net Gold Seal of Approval.