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

Input:
The product is fast delivered. It is contained in a nice and firm box. I doubt it since I never use a silicon baking mat before. But it proves me wrong. Easy to use and cleanup. No need for parchment papers. Highly recommend it!!!

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