I like that!
I could use CSS Grid urgently on my current project, but I hadn’t the time to learn it, try it and I wouldn’t know how to write a fallback. This is on my list of shame to learn, but unfortunately that list is still quite long.
The problem is the bowser support, isn’t it? The moment browsers 2-3 versions back, support Grid, one should be on that track and be able to master it, I think.
I subscribed to Jen Simmons Layout Land but it looks like it won’t even start at all. I hoped to see some interesting new layouts done with Grid but I haven’t, except those things on Jen Simmons Lab. Seems like developers hesitate to use it, because of the browser support.
Since Flexbox and Grid seem to work well together its not a question of alternatives but of solutions that you can combine. So, this looks good, but - the list of shame… .