Instruction: Analyze the user's review text and determine the overall sentiment expressed, then choose the corresponding sentiment option from the provided list (A: very positive, B: positive, C: neutral, D: negative, E: very negative) based on the identified sentiment.

Input:
Like the other reviews, the zip drive was great.  I bought the external one after having an internal one on an old desktop for years.  Never had a problem with the internal one.  The zip drive started not loading within a year of buying.  It was technically under warranty, but customer service told me otherwise.  Kept calling them, even after sending them a copt of my warranty and the only help they offered was to send me new disks.  Sometimes the zip drive would work, sometimes it wouldn't until it finally gave out. It's unfortunate was when it worked, it worked really well.

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