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:
This thing is junk.
It is top heavy and the arbors don't hold the grid attachment level. It just spins around and doesn't stay straight.
Also the arbors are too small for the bores that they are designed for, so they aren't a tight fit and will wiggle around.
This thing also doesn't work with AR style rifles, it sits too low to see through any of the sights/scopes that I tried with it.
The grid is way off too, especially if your scope has any Parallax. I was 6 feet off at 50 yards the first time I tried this thing even though I was dead on when using the grid.
Don't waste your time with this thing.

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