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

Input:
great mat. thin, lays flat, good colors, has decent grip. Gets a little dirty but that is probably my fault stretching with dirty feet :) totally recommend for the price.

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