Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
My favorite form of exercise is walking. I can do it year-round, through summer heat and winter's sub-zero temperatures (though neither of these extremes makes me jump for joy). I consider it one of the best forms of exercise and I like the fact that I don't have to belong to a gym to do it, especially since I live some distance from town.

But, unless I'm using walking poles (which I sometimes do) walking doesn't do a lot for the arms. These resistance bands - I have them in green, red and blue - help me take care of that, rounding out my daily routines. They're affordable, easy to use and, IMHO, effective.

I particularly appreciate that they are small and packable, making them easy to take along while traveling. Thus they join walking in being (almost) always available.

All-in-all, a good product at a good price.

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