Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
Good overall headset but with on fatal flaw. The faux-leather ear cushion turns to powder after a few years of normal indoor use. The cushion is not replaceable. Poor design, very non-green, as the worn out set has to be tossed in the recycling bin.

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