Review (4/5): Screws were a little lose upon arrival - easily fixed
When I first got this mirror, the hinge connecting the pole and the mirror was loose, meaning that I couldn't adjust the angle of the mirror without it flopping back to being flush with the pole. This was because of a loose screw inside, and it was easy enough to pop off the protective cap in the hinge and tighten the screw. I haven't had any problems since then, so I assume that this issue happened because the mirror got banged around a bit in transport. Knocked a star off, but this was a pretty minor issue, esp considering how cheap this mirror was.
Everything else is great. I was skeptical that the USB charging would work, but the mirror charges very quickly with the provided cable. If you happen to lose the cable, it's a typical micro-USB that will work with most other products. The light is activated by touching the bottom icon on the mirror itself, and I was surprised how responsive it was for a product this cheap (you have to firmly press it, but it doesn't take a ton of pressure, and there's no risk of accidentally turning it on by brushing it). You can also adjust the brightness, which is really nice. The bottom tray underneath holds a decent amount, but considering how lightweight and nicely portable this mirror is, I would recommend you hold put light objects in the tray to take advantage of how portable this is.