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

Input:
These sound great and the price is right! I use them for music production as reference monitors or for production when it's late and I can't use my studio monitors (too much bass for the neighbors). They're also good for travel. I [produced an entire track while traveling and when I got back to my studio, I didn't have to do much mixing adjustments. that means they produce a pretty good representation of the sound. Like all headphones, they're super crisp and clear in the mid to high end, but a bit lacking in the sub bass. I haven't found a good set of headphones for sub bass, but they do a pretty good job. Plus they don't need an external amp to deliver lots of volume.

Style is OK,
Comfort is amazing! I can where these for hours!

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