I would say the opposite: After a small initial hump, flexbox is actually very simple for what it gives you, but it's ultimately fairly limited. It's not up to

I would say the opposite: After a small initial hump, flexbox is actually very simple for what it gives you, but it's ultimately fairly limited. It's not up to implementing every kind of grid layout cleanly, and it's not even in the same ballpark as constraint-based layouts.