What a product! Never had this type of massager before -- actually, I've never heard of a "massage gun" before. But buying this was a delightful surprise. All the different attachments are very helpful and are supposed to work with different muscle groups. My favorite one is the sphere because it's not as rough and it's easy to apply to large muscle groups, as explained in the description. The bullet and fork are both pretty rough but it is good for a few minutes at a time for specific muscles.
The charging is a bit long but considering the power of the machine, I'd say it's very reasonable. I'd recommend it because it helps with the pain in my back.