Ekar chain on 12 speed groupset?

[cgolvin]

This is just out of curiosity, spurred by the 12 speed chain thread and noticing that Ekar chains seem to be widely available and sometimes priced below Chorus 12 chains. Has anyone used an Ekar chain on a 12 speed groupset, and, if so, how was the shifting and longevity?

I know that in a previous thread OP has provided guidance on matching chain speed and gruppo speed but I can't find it. Like I said, I can't think of a good reason to make this choice but I'm curious.