I like that the API surface has been reduced, but using it is more convoluted now and there are many new ways to screw it up. It is not at all obvious what the buffer length should be and having to create it manually is annoying. It's a lot more lines (comparatively). We have to use a while loop instead of the lovely for-of, which means that a small typo can lead to an infinite loop.

I am skeptical of the "do everything like Go" philosophy. The consistency is nice and Go's APIs are generally nice. But this is not Go. We should use the best facilities available to us that express the intent. Doesn't an async generator fit the bill better? At least it's what most people would prefer to interact with, I think.

It'd be great to have a helper in std to make using this more concise.