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 this knife sharpener after reading the very positive review on Cook's Illustrated.  They recommended two other sharpeners as well, but the other two were both larger and more expensive.

I have a sharpening stone and a diamond sharpening steel, but I always dread using the stone and don't use the steel often enough. As a result my knives are often dull.  I occasionally take my knifes to be professionally sharpened, but it's expensive and time-consuming.

I used this little gizmo as soon as it arrived, and after just a few "pulls" across the blade of each of my knives, they were sharp again!  I have expensive Wusthof knifes as well as a number of cheap knives, including both chef's knives and santoku knives.  The AccuSharp worked well on all of them.  After a few minutes spent sharpening my knives, they all passed the tomato test--the knives sliced a tomato easily without me exerting much downward pressure or using any "sawing" motions.  I'm not an expert, but my knifes seemed almost as sharp as after a professional sharpening with a stone.

Some negative reviews argue that the design of this knife sharpener is not ideal, and could even lead to injury. Personally I felt perfectly safe when using the AccuSharp.  I wasn't worried about cutting myself at all.

An added plus: the sharpening sounds didn't bother my husband, who is sensitive to metal-on-metal scraping noises.

This sharpener is small, light, cheap, easy-to-use, fast, and works great.  Highly recommended.

CAVEATS: I've only tried this sharpener on non-serrated knives.  I've only used it once, so I can't comment on the two issues that have been mentioned in the negative comments.  Some reviewers complain about the longevity of the sharpener blades, saying that the sharpener only works about 40 times before needing the blades replaced.  Given the price, 40 uses doesn't seem so unreasonable to me, especially considering that professional sharpening costs me around 5 dollars per knife. Other reviewers complain that the sharpener creates the wrong blade angle, or takes too much metal off their knife.  I cannot tell whether this is the case after one sharpening.

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