I have the K70 TKL Champion keyboard with optical switches. It's fantastic. I'd be all over this K100 were it a tenkeyless. Still looks great, though. I love the brushed black aluminum on these newer Corsair keyboards.
Well I for one am happy with my K95 I got several years ago when they were clearancing it out. I got the version with the big row of macro keys on the left that I used when I played MMOs. I liked that it was a big chunky keyboard and wired, I doubt I will replace this any time soon.