Honestly, this is needed. We have a diverse ammount of new gear, loads of new dungeons, overall more difficulty, and better gameplay performance.
I like the bigger healthbars on bosses. Was no fun to 2 man vet dungeons and kill every boss in 10 seconds and 1 shot all the mobs. Many of the vet I dungeons I can still solo but jt takes me time nd effort. As far as the general dificulty feels, esp around world bosses I like that I can get killed if I'm not paying attention.
I also hope this will improve players' gameplay abilities as the only way to be a better player is to beat a better opponant. Many players generally kinda suck (sorry, its true though) and I think this will go a long way into preparing them for harder content so that the learning curve isn't as steep.