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

Input:
It performs as promised. Using it as directed seems to yield slightly weak espresso.  I have experimented a bit and now use less water which helps a lot.  The price/performance ratio is is outstanding.

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