The code-savvy web design tool (now available)

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Macaw just released. I'll be very impressed if they can live up to this: "Macaw provides the same flexibility as your favorite image editor but also writes semantic HTML and remarkably succinct CSS. It's time to expect more from a web design tool." Has anyone tried it?
v1.5 just came out and wanted to see if there was any more feedback from people who've tried out Macaw?
We are evaluating it right now. We put some weight behind Sketch by integrating our iOS GUI Templates natively in Sketch 3. Some people are also raving about Antetype but haven't tried it.