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 product is the king of all hand grippers, don't waste your money in ABC spots shop on a cheap piece of plastic that your grandmother could close with her eyes closed. I am a athletic 26 year old man who works out 3 times a week. I started with the trainer after reading other reviews on here, and there tips were spot on the trainer is a perfect match. This gripper actually reveals the difference in strength between my two hands, right hand i can do full sets no problem, left hand takes alot more effort and can barely complete. That is what these are for though to strengthen and help improve strength. All in all a high quality product feels like it is defiantly built to last a longgggg time. Would recommend to anybody looking to work on their grip in addition to program using weights as well. A++

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