
Don Krieg should be quite strong if you think about it
I just rewatched the Don Krieg fight and it was honestly more even than I remembered.
And this is probably Day 2 or 3 since his journey started and I remember hearing somewhere that the strawhats had only spent 20-25 days together before the timeskip happened.
So, I feel having an even fight with Luffy who is going to be defeating so many insanely strong people in a couple weeks should be quite a feat.
Pre water 7 also before he unlocked gear 2, he had already defeated a lot of baroque works people, arlong, bellamy, crocodile and enel