I too, am interested in what people will have to say about the Explorer shell. Personally, the price is a little steep for me for something of unknown manufacture; but then again, it's from TAD, and their reputation for kick-a$$ stuff is well known. Not to say I woudn't spend that much, either - I've spent more money on North Face, Patagonia, and Mountain Hardwear shells.
Regardless, I'll probably end up passing on the Explorer shell. I'm quite happy with my Alpha Industries MA-1 flight jacket for everyday wear. If I had an extra $250 to spend on a jacket, I'd probably go for an Al Mar Tac-Jac!!!