I just got a filthy example of one of these for free, and these are unusually good quality for a rubber dome. They've got Cherry compatible double shot keycaps, though they're low contrast (kinda defeats the purpose of double shot when you could go dye sub or laser and get better contrast and equal durability), a decent metal backplate, separate barrel plate, and the controller is huge. Key feel is decent for a rubber dome, but still not as good as my Quietkey.