Pros: strong on powder, crud, off piste
Cons: weak for tight, quick turns (as expected)
Very advanced skier, w/ 20+ yrs or so experience. Generally ski Mammoth. My everyday skis are short (170 cm) Volkl AC 30s.
I skied the Argos this weekend in Mammoth on fresh and packed powder. I found these skis to be stunningly capable in soft snow, powder, soft moguls, and crud. Contrary to what some have said about the skis, I found them to be very easy to ski and plenty forgiving in soft conditions. In soft conditions, they manage trees and chute turns very well. They skied well at fast and slow speeds. They have no tendency to "hook" in crud-- likely the result of the limited sidecut. I found that I had almost no leg fatigue after a day of powder skiing. I don't ski goomers often, but found the skis had a high speed limit (higher than I likely would be willing to ski), yet were easy enough to turn on the groomed provided you put a modest amount of pressure down.
That said, I do not think the Argos is a great "quiver of one." In fact, I really am starting to believe that there is no such thing as one ski that really manages to do everything. When things firmed up, the Argos was not quick enough for tight moguls or sharp turns in narrow chutes. I found myself happily back on my AC 30s. This is not unexpected, and I never expected the Argos to be more than a "sometimes" ski. I doubt any 105 mm ski with a 24m radius excels in tight situations (trees, narrow chutes, moguls) on hard pack.
So, my take on the Argos is that it's a fantastic ski off piste in soft conditions, a good enough ski on groomers, but not the right tool when things firm up.