Review (4/5): Pretty good
I bought this because I been getting a bit of bags under my eyes lately. I use it every night, and so far it works. It's not a miracle worker, I mean, if you pulled an all-nighter it might not be as effective as it is when you have a good night's sleep.
The device per se is pretty good and easy to use, the battery life is fantastic, so that makes up for the cheap packaging. Read the de instructions and close your eyes while using it near your eyes, the red light is annoying that close to the eyes.