I do like the features. I was drawn by the appeal of cssnext as a way out of needing preprocessing, by being able to use soon-to-be-supported css features straight away.
But adding new spec that looks like the CSS language is not transparent, it's ambiguous. It's not a knock perse. And like you say it does not lock you in, as you can rely on the output. But I wouldn't want to use it for projects that are distributed to other users, because now they have the burden of learning and distinguishing between constructs coming from rucksack and normal css spec.
But adding new spec that looks like the CSS language is not transparent, it's ambiguous. It's not a knock perse. And like you say it does not lock you in, as you can rely on the output. But I wouldn't want to use it for projects that are distributed to other users, because now they have the burden of learning and distinguishing between constructs coming from rucksack and normal css spec.