I bought two black Tux keys for my Corsair Vengeance K70 RGB.
My main complaint is that the logo is a bit fuzzy from close up, i.e., not very sharp, given that the Tux logo actually has some fine detail. So, not a great match there.
Also, the black surface area is not perfectly smooth. There is some horizontal striping. But this is probably only obvious when compared to the native Corsair K70 keycaps.
It's unfortunate that the key-caps do not show backlight, but I knew that before I bought them. Also, there are some differences in shape to the native Corsair K70 keycaps, but they don't stand out all that much, and I could not have expected a perfect match. (Posted on 4/16/15)
But they look lousy with LED illumination from underneath... muddy, illegible, with a weird shadow in the middle. And they look DIFFERENT when the lights are turned off. (The legend is visible against the dark plastic, not like the other keys on my keyboard at all.) If this is as good as it gets, I wish I had stayed with the stock black keys. Disappointed.
**REPLY FROM WASD: Our keys are not designed for use on backlit keyboards.** (Posted on 1/7/14)
I ordered Linux-logo keys to replace what I thought would be winlogo-keys. I have a Ducky SHINE2 with MX Clear and white LEDs. The keys fits perfect and have the same shape, but the keys itself are semi-transparent, so I can see the LED through the key, even if it mainly shouldnt, not a problem though. But I whis they could offer propper LED-ready keys in the future, also I miss that I can configure one and one button and buy only those which is configured. The configuration for "OS-logo kit" doesnt have good enough configuration, so Tux is completelly centered horizontal and vertical, while I want it on top vertical and middle horizontal.
I will maybe switch back to my normal logokeys which was included on the keyboard, which was not winlogo keys actually, but the Ducky-logo ;] (probably will continue to use Tux since I love it anyway, but I still wish for LED-ready keycaps :P)
Shipping went fast (to Norway). (Posted on 1/30/13)
i was kind of hoping the keys were made the same way the stock keys on my current keyboard are (a semi transparent white plastic, with an opaque colour coating) which would have allowed the embedded led's in each switch to illuminate the keys.
sadly this isn't the case the light blue keys almost entirely glow and the reds i bought for ESDF barely glow at all.
the keys themselves are fine perfectly fitted to the keyboard and no real complaints there. just would have been nice if the glow worked too (Posted on 1/25/13)
My Tux Cherry-MX keycaps arrived quickly and were very high quality. As a professional linux sysadmin, I use these caps on my work keyboard and they are the envy of my co-workers. I have referred a few of my cherry-mx banging co-workers to your site for any custom keys that they may want, and while I don't expect to need any custom keys or keyboards any time soon, I will definitely return to WASD keyboards if the need arises. (Posted on 1/16/13)