My detailed review is a reply in an earlier thread, "Salomon X-Screams - my experience" because someone asked about them there. (I also changed my name since then so it would have a pun in it.)
The next guy in that thread thought they were too slow edge to edge. Since I'm a bit slow
edge to edge myself, that's not an issue
I don't find them scary on ice, but you have to learn how to do it. With a 75 mm waist you have to make sure you're really getting them up on edge as much as you think you are. Try reaching downhill a little further with your hands near the completion of your turn to make sure your body is angulated enough.
I don't use these if groomed or hardpack is all there is (that's what my Rossi 9S's are for), but they do much better for me on ice than pencils do for me in deep snow.
But the main thing is, when I'm where they belong, in deeper, softer snow, they're the most fun ski I have ever used. Closet and Shadows at Steamboat! Middle Hardscrabble at Cannon after a dump! Yes!!