David Petzal has a blog over at F&S. About a month ago he did a review on the Professional. His experience mirrors Brianc74. He was able to get it to shoot submoa, but it wasn't a good time getting there.

I don't need a 7 Rem mag, but I want one. I've been trying to make a decision between a high end Sako A7 series, a Cooper, and the LAW Professional. I've had a Cooper, and regret letting it go. It's the most expensive option of the three, but I know it'll shoot when I get my hands on it.