Been soloing these with my Healer. He is up to level 39 now and has no problems at all with these. He get a + to dmg for his Hammer and they are - dmg vs his armor.
Drops are rare. I have gotten Legs, Bags of Coins, Claws (Kill Task item) and "A Vial of Warm Butter-like Substance" Gotta love that one, what's next a bib?
They are not social and I find that if I stand at the back side (away from Savausd) I do not get PK'd. Most PK's will run up, look around to see if anyone is camping them, not see you on the back side and move away.