I recently splashed the cash on a couple of Core pads. A big layout but given I'm the wrong side of 40 and don't bounce like I used to I see it as investing in my knees. I'd have asked Santa but doubt he'd have got them down the chimney. First impressions are really positive.
In terms of design, they're very similar to Organic, albeit with a couple of major differences that swung it for me;
1 - They have a useful flap which covers the carrying straps when in use. I've never previously been a fan of pads with carrying straps that face the ground for UK conditions (obviously different if you boulder in California).
2 - This flap doubles up to offer a unique carrying system. Difficult to explain (look at their website), but offers a good solution for carrying multiple pads into the crag.
As Tim said, the carrying straps themselves are comfortable and some obvious through went into it, rather that just stitching on some webbing to carry the pad with.
There are also 3 layers of foam (as opposed to the 2 you get with other pads). As well as the open cell and closed cell, there's another layer of open cell foam on the top which in practice seems to give the pad a softer feel upon landing when new. As far as I can tell, this top layer runs the full area of the pad, which also means it doesn't feel like there's a joint in the middle of it.
I can't comment on longevity of the foam but expect it to be good. The only downside is that they seem to come in any colour you want, as long as it's black (with a bit of colour around the edges).
