Terrible
I went into this knowing pretty much nothing, and having seen the last one which was terrible, this is equally if not more terrible.
Maybe this franchise should've ended after Paul Walker's death.
Jason Mamoa is a terrible bad guy. Alan Ritchson is perfect as a loner, like him playing Reacher. He is not a leader.
SPOILERS
Teaming up with Jason Mamoa's character was just lazy writing. The writing overall was poor. Terrible dialogue. None of the humour landed.
These movies are now parodies of themselves.
Avoid, and save yourself 2 hours plus.