Though I find Poisonous Strategy to be way more difficult than Darkness on Ilum. I can solo the H2 without a sweat on my scoundrel healer but there's no way that I could do it on my op healer, it's just that I can't deal with 2 golds going crazy on AOEs compared to the one gold on the pub side.
PS is very hard to solo without a character with an in-combat CC, because both of the Jedi that pop out will slam you with a constant series of stuns, knockbacks and other annoyances. In a two-man group (it is a heroic, after all), however, it is much easier than DoI, with it's million trash mobs with massive aggro radius. In DoI, the trash is more dangerous than the bosses.