Mine was around 130 hours, just beat the last story boss yesterday. I did a lot of fucking around, aimlessly exploring, progress things a bit, go wander around old areas, etc.
I have a second character and it’s much faster, I have all three southern areas and most of the lakes unlocked, killed margit, and only have four hours on the character. Second play through is so much faster because you know where to go get goo equipment, how to run to site of graces that were full clear areas the first time through.