Instruction: Analyze the user's review text and determine the overall sentiment expressed, then choose the corresponding sentiment option from the provided list (A: very positive, B: positive, C: neutral, D: negative, E: very negative) based on the identified sentiment.

Input:
I purchased this product after I saw a commercial on TV.

The first day I used it, I was sore. The next day wasn't any better. I've been using it for three weeks, combined with a healthy diet, and I've lost 7lbs. and my clothes fit a lot looser. I am not a person who sticks to diets and exercises but this I am able to do. The instructor is not annoying at all. She moves very quickly through the entire exercise, before you know it the 20 minutes are up.

When I first got this, I honestly expected something completely different. When I was about to use it for the first time, I honestly was going to send it back because I thought "what real difference can a little machine make?" But it makes a lot of difference. It makes the workout a little more difficult and you don't have to exercise as much as you would just by regular exercise. I've read some other reviews on this product that claim that bruising occurs, however I've been using this product and I do not have any bruises from it.

If you are looking to lose weight, gain energy, or just tone up, purchase this product.

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