My first impression: The build quality is much better than expected. Text display: IMHO super bright. Resolution/Graphics: Surprisingly good. Built-in demo: a pleasant surprise. Cons: Vibrates a bit (doesn't matter), the blades are such that there is almost no air blowing (another minor point since I was only interested in the POV effects). Overall I can't believe how cheap this POV device is. I recommend you to buy it as a POV (Persistence Of View) demo, not as a "permanent" fan.