In reply to mike reed:
I've had a similar experience. I kind of hoped that what I'd heard wasn't true, in that the new boostic would in some way replace the old, so I went for it and ordered a pair in my usual size.
The first time I tired to use them in anger was on a some tiny edges on vertical dolerite (Ratho outside) and it was instant disappointment - nowhere near the same amount of support, with almost a feeling of mid-sole flop AND whatever insert they've used to stiffen the toe area is thinner too, or so it seems to me.
I basically consigned them to the "indoor" pile. And then....bouldering and routes indoors, they started to come into their own. That made me think they may have some more promise as a more "allround" shoe, more akin to what I usually use the instinct VS for. I ended up taking them to Margalef in November and they were really quite good. Comfy, precise. Can't say I would have preferred my usual Instinct VSs.