There are a few cons/pre-cautions as well such as: aggravating an existing injury, increased inflammation, increased risk of bruising esp. if on a blood thinner, never use over a boney area, high cost and the heavy weight of the massage gun. There are usually several attachments that can be utilized as well for different parts of the body or purposes.
I have found patients get a lot of relief from using these instruments at home. I have three different instruments at the office with basically mild, medium and hard concussive force. Everyone’s sensitivity is different, so I would advise you to be discerning when purchasing one of these guns. Both of these massage guns are pretty forceful and deliver strong concussive vibration which can be too hard for some people, other patients love the hard concussive force. Also, unless you have someone at home to help you, reaching the upper back and lower back can be challenging by yourself. However, using the gun on your arms, legs and neck is pretty easy to access by yourself.
If you have any questions or want to come in to try out what I use, I am more than happy to answer any of your questions.