Instruction: Assess the user's sentiment in the provided review and select the appropriate sentiment option from the list as the answer.

Input:
Did its job, no miracle cure but I instantly got more movement in my elbow after following some instructional videos on YouTube for tennis elbow treatment with the bar. Over time it can prove to be a very useful tool as well because there are many uses for it. Only mistake is that I bought the blue, highest level. I maybe should've gotten the green as it would be even more manageable  but I was still able to perform exercise with the blue.

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