Its only been a day, but so far I haven't found anything to really appreciate with the changes. Nearly every class elite and even some core professions I've tried are a lot or otherwise noticeably worse in PvE than before. And by worse I mean, less dps, and less survivability. My weaver used to be decent. Nothing spectacular, but could handle a couple of vets and small groups handily in the Maw of Torment event. Now, you sneeze on him, and he goes down. My Reaper still manages to take a punch or two, but Shroud is practically non-existent. I no sooner activate it, than it disappears. At least the Scrapper, despite the rework, seems to be doing ok in PvE. They barely touched Holosmith, but whatever they did, made it not worth playing. At least when Scrapper and core are around. Warrior seemed unchanged, but that could just be me. I have yet to PvP other than a couple of hours of WvW, where things are difficult to judge given gear and uneven group battles.