It has really nice rubber dome sliders, greased from the factory (probably white lithium or similar). IIRC they have PBT keycaps too. 50x better than your typical rubber dome. Metal plate backed, too.
The flat profile and spherical keycaps take some time to get used to, though.
I don't wanna get roughed up by the topre crowd for saying this... but... hell, the typing experience is on-par with the realforce. there i said it. Imagine a 45-55g realforce with a flat profile, spherical keys, and wonky layout.