Trek works best when it's subtle, but the producers of this film have no faith that viewers will get their message unless they beat us over the head with it. Hicks offers one of the all-time annoying performances. She emotes her lines horribly and stands as a thoroughly unlikeable character. Star Trek IV is not a bad film, but I really feel the high esteem with which it's regarded is misplaced. It's a fun experience the first time around, but it's an artificial high that decreases significantly with every rescreening.
Sharpness is one concern.
Print defects mar the image mainly during effects shots, especially if there's a composite. At those times, we see fairly high levels of speckles and grit, whereas these issues are not a substantial concern during other parts of the film. Colors generally appear accurate and natural, but a fair amount of oversaturation intrudes at times. The general smoky murkiness of starship bridges also creates picture flaws. These images often look rather fuzzy and ill-defined.