Oh so light, oh so compact-able.
For split boarders I would hazard that there's nothing better on the market. They breakdown so small I can stick 'em in my boots to keep all my together by the door.
For AT skiers these fit the bill for light use, however one word of caution, similiar to a tent pole, the BD Compactor uses a taut cord to extend. Genius for lightweight design , however I snapped the cord torquing it in really chunky snow. I like that most of BD's poles can be fixed with replacement parts, the Compactor is done-zo once it breaks.
I also found the split baskets (for securing compacted poles) waren't super ideal for flipping the newer Dynafit heel risers. Not a pain, but I wasn't convinced the cut out for storage/display purposes was worth a sacrifice in on snow performance.
Overall the Compactor is one of the most interesting poles on the market, its weight and size alone will convinced a lot people (me!) to keep using it despite any greivances. However, on long trips in which you use your poles aggressively as tent stakes, etc. I'll probably stick with the tried and true Traverse or Expedition.