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 have been using my machine for 2 months now, and absolutely love it. I get a better cardio & muscle building workout than with walking or bike-riding or stair-climbing. I push myself, so it's like jogging without hurting my knees or feet. It is definitely great for body shaping and fat-burning, and it will make you sweat!

It is SO QUIET that I can watch TV or play music while I workout, and have no trouble hearing either one.

If you go forward, it works your quads and calves really hard. If you go backward, you can concentrate on working your butt and thighs, as well as getting better resistance to your arms. The book shows you some different stances that will help you vary your workout. I am 5'9" and think that the stride length is just fine. I am not into taking big, long strides, because I am focusing my efforts on my butt and thighs. The foot platforms are comfortably placed and not too far apart... there is NO stress on my hips or joints at all.

This is a solidly built machine, has quality/well-fitted parts; was very easy to put together. It is compact, and takes up little space. It is very stable, not too heavy, and has wheels on the front so you can tip it and wheel it into place or out of the way. The ac adaptor plugs in at the bottom back of the machine, making it very convenient to plug into the wall. The electronic panel is versatile, allowing you to create your own program if you don't like the ones it comes with; easy to read, too.

I highly recommend this elliptical trainer. I just love it!

The first machine that arrived was damaged in shipping. Had to take it apart and send it back. Amazon and the manufacturer were GREAT! Outstanding customer service! Got my replacement machine VERY quickly, and it arrived in perfect condition.

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