These are two completely different games.
That's like comparing oranges and apples.
D:OS II had a blast on me, took away almost 160 hours, but due bugs I have no desire to play it anymore, maybe later, but not at this state.
I really hope Deadfire will give me a blast too.
I expect from it not less then BG2 / Fallout 2 experience.
Hopefully the game will be great and without any crucial bugs like D:OS II.