I think it has a lot of technical merit and I heavily appreciate the fact that it's open source which is why I used it here. That being said in terms of microcontrollers I don't think it's doing anything fundamentally that much better than ARM, most of it's competitive advantage just comes from the fact that it's open source.
Edit: just as a disclaimer I've never actually written any ARM assembly/silicon design so I'm probably not the most qualified to have an opinion on this
Edit: just as a disclaimer I've never actually written any ARM assembly/silicon design so I'm probably not the most qualified to have an opinion on this