Instruction: Assess the user's sentiment in the provided review and select the appropriate sentiment option from the list as the answer.

Input:
After 25 years making my living as a design engineer, I get very discouraged when I come across a product such as this which is so poorly designed.
It does not do the job it is supposed to because of glaringly obvious design flaws:  The teeth that are supposed to grip the nutmeg are too short and too blunt.  The grater blade is cheaply made and grinds rather than shaves the nutmeg.  The locking mechanism is awkward and hard to use. Save your money and buy a micro-plane grater.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: E: very negative