I really like the MT3 profile. And I like the touch of ABS double shot MT3 than PBT dye-sub MT3 keycaps. The light grey color of the 3277 alpha keys is nice. But the dark grey of the modifiers has a blue tint. I'd much prefer a neutral dark grey, or even black.
I pre-ordered the kit with accented 1u keys for ortho. Too bad it was cancelled and never made. But I'm glad the Colvrak kit is still available.