Would the following phrase be considered positive or negative?

long and relentlessly saccharine

negative

Would the following phrase be considered positive or negative?

deadly dull , pointless meditation on losers in a gone-to-seed hotel .

negative

Would the following phrase be considered positive or negative?

undeniably intriguing

positive

Would the following phrase be considered positive or negative?

must report that the children of varying ages in my audience never coughed , fidgeted or romped up and down the aisles for bathroom breaks
positive