I like the books. I like the overt ethos of diversity and acceptance that sits at their heart.
But, more than that perhaps, I like how the original editor of the novels, one Marco Palmieri, INTENDED for the series to be more idiosyncratic than the other series (NEW FRONTIER excepted).
He not only let us write the books we intended to write in the way we wanted to write them but ENCOURAGED that.
So, along with the variance and diversity among the fictional crew, you are getting an extremely diverse set of approaches here.
For some that may make for a bumpy ride or claims of inconsistency but, looked at another way, there should be something in the series for nearly every reader to embrace.