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

Input:
With proper preparation this is a good alternative to hot salt bluing. Again the emphasis is on the preparation. Metal prep and ABSOLUTELY CLEAN. Pre-warm the piece and apply as many times as required to get the finish you want.

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