My wife and myself boxed her yesterday, main group consisted of warrior,shaman,wizard,druid,cleric and T5 healer merc. Support group consisted of necromancer,magician,monk,enchanter and 2 T5 healer mercs.
On the first kill we didnt think she was going to be too big a problem, so we were caught by surprise when she put up quite a fight. Her nasty 22k AE DD, combined with stuns and knockbacks, made us struggle keeping the second group alive, and they all died fairly quick, so we lots a lot of DPS there. Fight went on, defensive disc faded, went all aggressive from that point, then we lost the magician and the druid, then the tank, we had her down to 0 percent, then she ran around a corner, some weird pathing next to a huge mountain there, i ran after her with my shaman, and found her killing some pets/mercs, still at 0 percent, hit her with Bite of the Ukun and she was dead, dropped the Doll Smasher, no template.
We rezzed and buffed up, and she spawned again, We moved camp a bit, pulled her with the monk, and this fight went much better. We placed her next to a huge rock, and put the healers/casters around the corner a bit. Took her down fairly fast with everyone just dishing out, dropped Arabella's Gorgetine, no template. i'd say she is a little tougher than the other nameds we have killed in this zone, allthough we have had some problems with the brass golem sometimes, mostly due to nasty damagespikes and tank dies.