Sountrack, though gorgeous to listen to individually, isn't composed well with the flow - you can almost see the guy who pushes play and pause. Also there isn't enough of it to cover all the scenes, so the majority doesn't have background music at all.
Many scenes aren't animated at all. Just pseudo-paintef panels flashing - imagine your own animation. Low budget ahoy.
Ugly colors too. Whoever dressed Zodd in pink pants deserves to die.
Cutting out pivotal manga scenes and lot of censoring. Though if you read the manga anyway, you shouln't mind. They had to cut something.
The major plus of the anime is voice acting. The seiyuu for the main characters were perfectly chosen, and delivered every single scene with such emotion that it alone is reason enough to watch it.
Plus it's Berserk - even if the anime is shitty, it's not like there is or will be anything better to watch.