Would the following phrase be considered positive or negative?

it never quite makes it to the boiling point , but manages to sustain a good simmer for most of its running time .

positive

Would the following phrase be considered positive or negative?

is effective if you stick with it

positive

Would the following phrase be considered positive or negative?

too many characters saying too many clever things and

negative

Would the following phrase be considered positive or negative?

nothing overly original , mind you , but solidly entertaining
positive