I really like the colour of the red & white set I got, and the fact is they are indeed double-shot, so those are both points for them, but the profile of these keycaps aren't actually SA (though they imitate it). Instead, most of the bottom three rows of keys – with exception of the "big keys" like Shift, Return, etc. – have a horizontal cylindrical cutout/profile, as opposed to the "dish" shape of real SA profile, though starting at the fourth row they take on the dish shape . The bottom three rows have the same height, which doesn't match the SA standard. The fourth row up is correctly sculpted, but this means it's actually lower than the third row, which feels very weird when typing. Materially, they seem durable enough, so I don't expect any wear and tear problems from typing on them, but the sculpting and shape of these caps leaves much to be desired for an SA enthusiast.