Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
I had a receiver go out due to (what I believe) is a power spike that cost me around $150 to get fixed. I decided to get a line conditioner to offer a bit more protection to my A/V gear compared to a regular power strip. This unit is relatively inexpensive and comes with an equipment guarantee if there is damage due to power fluctuations. The device seems to work well and had plenty of outlets in the back to connect my electronic equipment. I haven't really noticed it kicking in to intervene in low/high voltage situations just yet (US power supply is not that bad) but I am sure it will come in handy in fall/winter weather with weather-related power variability.

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