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 lens is great to use and very sharp.  I have used in for over 5 years with good results in a variety of situations.  I have seen where Ken Rockwell and others have given this lens a bad review, however, I do not agree with them regarding the picture quality of this lens at all.  Maybe I just got lucky and received a great copy of an average lens.  I keep it on my camera body most of time and cannot see buying another lens worthy of taking its place.

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