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

Input:
This is a great inversion chair, especially for the price.  You have seen the one advertised on TV that is much more expensive, but this one does the same things exactly.  I purchased this chair last Christmas for my daughter and son-in-law as a gift, but found out that our son-in-law had already purchased one for his wife (our daughter) and therefore now had two of them.  We decided to take the chair and give them money for something else they could use.  We have it set up in one corner of our living room--yes, living room--and use it fairly often, and it really does help the lower back.  It would work better if we used it more often.
I definitely recommend it for daily stress and back ache relief...of course, if you have a really bad back injury you need to check with your doctor before using any such device.  I would recommend this item.

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