Every time I see something done with it, versus what native code can do on the exact same hardware, I reach the conclusion it is only useful for DX 9 class graphics or just plain prototyping.
DX 9 class graphics are great for a lot of applications. Not every project has to be at the cutting edge of rendering technique to achieve its goals.
Which is a waste of resources already on a DX 10 level card, which were released alongside Windos 7, almost 10 years ago.
When will we get a 3D Web API that can do DX11 class graphics?
And I am already leaving out DX12, Vulkan level cards.