My friend owns a pair (live lifes technically, same ski though) and I've ridden a pair a handful of times.
They're much like any other surface ski where they are on the stiffer side and like to go fast. Durability wise, top sheet chipping is the one thing you'll have to worry about, otherwise they're durable. I've never skied them in powder, which I have no doubt that they do well in, but they are quite fun on hard pack and chop. They hold an edge pretty damn well and won't squirrel around on you at high speeds or on bumps. That being said, they are much more slashy and making tight little turns requires more effort than other softer, shorter radius skis. Also, they are not very damp either, which I personally like about surface skis.
If the deal is good I say go for it. I plan on getting the 181's for a touring ski at some point