I have the game.

. Al least.
Can any of you, players, respond some questions?
The NPC's in the game(those who join your group) are good, they worth?
It is possible to a 3 members party at the end of the game reach, all 3, level 32(16/16, 16/16, 16/16)?
Please, any advice do you think I'll need, give them now, because I'm installing the game.
Thank you