I bought myself a pair as well as Nasser from Blog37, we both like ’em and they do actually work as advertised. Overall its a little more tolerable to stare into your computer screen for more than 12 hours!
Build quality is good, although the frame seems a little cheap, and I would’ve liked it if the model we ordered was a little bigger so that you do don’t have to tilt your head down when using a tablet/phone. Packaging was a little cheap too. But I don’t care, as long as it does what advertised i’m happy, and it does work! First day with it at work I let a couple of people try it and most of them liked it!
For More information and models, check out www.gunnars.com