After having tennis elbow in both elbows for a year, I came across this machine and decided to give it a shot. Scraping is a proven way to help tendons heal, and as I learned tendon injuries are a lot more stubborn than muscles. However physical therapy was just too expensive and time consuming to be feasible for me, so while I was skeptical, I figured it was worth trying FiixBody, especially with their return policy. First 10-week session and one elbow improved about 80% but the other was actually hurting worse. Fortunately, you not only get the machine but you get personalized coaching! Lori guided me through doing a second round, and encouraged me to stick with it, that the pain was actually the healing process working. One more 10-week session and I can say the pain is 95-100% improved! So much so that I have to remind myself it used to hurt every time I picked something up, because now I don't even think about it. This is definitely the way to go if you want to spend a lot less than physical therapy, have something that works, still have personalized coaching, and be able to reuse it should you ever have elbow pain crop up again. 100% recommend!