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

Input:
I set this router up to share access between systems running Win XP and 98.  Setup was a flash, and the router works great!  I highly recommend this product.

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