Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
After first fiddling with the stiring rod, we were able to make great popcorn for the first few months.  Trouble is, it seems the oil (used sparingly) found a path into the electrical elements and eventually made the cooker useless -- both the reversing stirer and the heat produced. In desparation, I took it apart and found an oily mess inside.  We tossed the popper.

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