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

Input:
This coffee Urn was used weekly for 4 months and now quit brewing!  Amazon NOW offers it with a service contract...no wonder!
Amazon warranty expired after 30 days and West Bend has yet to make good on their warranty.
Don't buy this one!

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