Let's start with (+).

(+)Music is awesome! In each map, even in town!!
(+) New armor looks cool :) even if it's epic xD
(+) Many new pets. I love it :)
(+) walking there is just so easy... Smoother?

Now to (-)

(-) Some sounds are a little bit... Not good? :D Most of all it can be heard while fighting Pakuna.
(-) Last boss 1 hitted rogue with 3700 hp. What will be with most rogues/mages under 3500 hp? 60% of endgame have around 3200-3500 hp.

These are all (+) and (-) I found so far. Will be updating this thread as much as I can :)