Here is my feedback (roughly replicating what I wrote in the betatest survey):
- I looked for “grid” in the UI, but that is the grid-for-alignment feature not the grid-for-layout feature.
- In the grid-layout feature, the icons are great (their icons show what change they trigger).
- I like the pink edit overlay that enables adding columns/rows and shows the width indicators and the subtle highlights reacting to hover and other input.
- My main probem is that there are a lot of options and lables that make only sense when one knows CSS, e.g. the FR length unit (a rather nondescript lable), the manual specification of area by name, or positioning by assigning grid-cell-numbers; this demands designers to learn a model that is created to be written rather than used by direct interaction. This does have no clean solution, but I would prefer having merely the parts of CSS Grid reflected that work well with a direct interaction model. (there is already an answer by @myfunnyandy on the original thread)