Just received my Gunnar model: Groove few days ago. All I can say is, it's really a good eye wear for PC, especially long hours. After using it for few days, I really noticed the differences before and after using it. No wonder I easily feel tired and migraine after facing the PC for few hours, because of the LCD brightness & contrast. Infact I already tuned down the brightness and contrast to about 20/100, but it still pressuring my eyes. However after using Gunnar for few days, I really felt more comfortable and really-really less strain than before. My first time experience is same as what MaUi commented earlier, just need some times to adapt to it only, as for my case just a couple of hours only. Give it a try, you won't regret getting one....cheers...

However my only cons is their appointed courier service, which really sucks, because it took about 4 days to reach me (i.e: Singapore to KL), other than that Im fine with it

Stan