my wife and i 600 smite UW, and can complete the first 4 quests (clear chamber, escort, unwanted, and ice king) pretty much every time we enter.
with a 600 hero smiter, i can get clear, escort, and unwanted completed.
With 2 person team, can get to chaos planes with alot of work and frustration. (for us anyway, good players might find it easier than we do...)
i've found that usually one person in the group gets the majority of the ectos. when wife and i go we split 50/50, but when i have hero smiter i vary between 0-5 per run. (usually get at least one, but last night didn't get any for the first time in forever... damn Ogden for not sharing anyway...

) worst run i've had in some time was last night, but they happen and i still made 3k off the run so i won't complain overly much.
the thing i'd really like to do is add an SS necro and make a 3 person team. i know that it can be done with 2 by adjusting builds right, but 3 person sounds more fun to me...