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

Input:
Good visible results within two weeks of use.

Using this product requires a bit of practice and patience. It can be quite painful if not used correctly. If the correct movement is used and practiced, the exercise becomes quite enjoyable.

I have noticed my abdomen become more firm. The exercise also targets the triceps and shoulders. I would recommend this product for anyone who wants a good home workout.

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