I have to disagree...I'm in Surefoots this season (in Lange WC 130s), and they've been GREAT. It is true they are fairly rigid, and they do stiffen up the boot a bit (which I like), so if you're looking for plush feel, don't go there. But if you are an aggressive skier or former racer who's used to and likes a very snug and not at all cushy fit, check 'em out. I could not be happier -- fit like a glove and after years of fighting with boots due to very low volume, flat feet, I'm finally in a groove with my boots and making few or no adjustments during the day.
Also, I know there are some who disagree with their approach to orthotics and think they're too rigid, but I feel like they keep me in alignment and every little move I make translates. I suspect there's truth on both sides of the orthotics debate and that it depends a bit on what your feet are like -- I feel like my feet need that rigid footbed forcing me into a higher arch and aligned position. Others who need less "correction" may benefit more from the other approach.
Finally, I have read that some people felt the first few days in their Surefoots were painful and/or that the foaming experience itself was painful. Not for me. They were great right out of the gate and the foaming process was no biggie...just a few minutes of pressure. Maybe some people's feet are more sensitive or bruise easily.