Instruction: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
I bought one of these to use at home a few months ago when the lid of my StirCrazy popper broke.  Then I bought another one to keep at work.  It can pop with or without oil ( I prefer oil so the salt will stick better).  It does need a little paper insert but you can use the same insert to make 20-25 batches (as per the instructions, I tend to use it more) and you get a pack of 8 inserts to start.  Replacement inserts cost like a dollar or so for another package of 8 inserts.  It does leave some kernels un popped but no more than you would find in a microwave bagged popcorn or in a StirCrazy or in an air popper.  Overall, I'm very happy with this (bought two) and use it at least three times a week.

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