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

Input:
This was a gift to son-in-law, he used for the first time yesterday and was very happy with the performance. It was still cold several hours later. Would purchase again.

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