I bought one when they were on Steep and Cheap about a 3 weeks ago, and will echo above posts, it's a dang nice bag even at retail price. BC still has them for $210, which is a freaking steal.
If you can tolerate the center zip (it's not as hard as it sounds), this is a really solid option for a 3-season bag.
There's a good bit of chat about it on the thread in gear deals subforum from when it was popping up on SaC.
My observations based on one night in the backyard:
Pretty accurate temp rating, good construction, roomy but not big, pertex shell beads condensation well, and breathes nicely. Mine weighs 22.9oz (650g)
My one big gripe is actually minor- the vertical baffles allow the down in the chest area to migrate to the hood, which must be shaken back down into the chest.