I agree with everything you say, Gutbucket, and bow deeply to your knowledg of the subject - personally I never got beyond MS stereo in terms of complexity! However, I still feel that the device will sink or swim based on capsule quality - indeed we have to remember the price point but, apart from everything else on offer, the truly unique aspect of this device compared with every other compact recorder on the market is that it has no inputs of any sort. (In the nature of the thing, that's inevitable).
Almost everyone here seems to regard the built in mics of the devices we discuss as being something to be used when all else fails - we have our own favourite external mic rigs to use with our recorders - but this time, it's the internals or nothing.
It's advertised here in Australia for pre-order - I'm really hoping the reviews will be positive because I need a really, really good excuse to invest in one of these given that I have no particular use case, these days! But I want one....