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

Input:
This product does exactly what it's designed for. no more, no less. very effective.

as others mentioned, the only problem is that when pulling the center bar, the stretcher tends to lift itself above the ground a bit. Minor annoyance but not a big deal. i did put some tape around the screws so that the floor does not get damaged. overall, recommended as a cheap and simple way to improve flexibility

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