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

Input:
You *can* buy a disc-based MP3 player for a lot less. But I'm enjoying this one mightily. It's thin ... it's durable ... it's light ... the firmware upgrade actually *worked* ... Compare and make up your own mind.

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