I got em I like em. I broke them to my feet by hiking twice to Prusik last yr. They blistered me big time but are now broken in fine. They are great with the bent crampons like M10s or Grivel Rambos. Waterproofing is best to use SnowSeal or some type of wax and liberally reapply (even if you are conservative).
In summer, lighter than p;lastic boos for doing those multipitch rockclimbs with a glacier approach is the reason i bought em.
However I find that together with the crampon, they excel for ice. Like switching from a mitten to a glove, much better sensitivity and control.
A friend borrowed them last year after he forgot his boots at home. We did Night N Gale and it was -15C out for most of the day. Perhaps because the boots were a bit small for him, he frostbit a big toe and ended up losing the nail. Anyways if its really cold out i would still prefer plastics. Also its harder to ski in them for mtneering approaches I think.
Do not get the red freneys (Freney Light or something) except for summer-only use is what i hear, more of a competitior with LS Trango than an ice boot.