I recently picked up the G3 Theragun. Yes, it's expensive, but with the 30 day return window, I figured it was worth a shot. For the past few years, I've had issues in my glutes, mainly my left glute (strain/pull from deadlifts) that never seems to go away. I'm tried PT, chiro, massages, nothing really seemed to fix it. Hot yoga has helped some (along with other issues with tight muscles), but the off and on pain and discomfort is still there.
2 days of the Theragun, several times a day, and man oh man, it seriously works! I can squat again without being in discomfort or even pain. And yoga poses that really stress my glutes are becoming easier. The gun was extremely painful at first, once I found the real problem areas lol. It's like getting a really good, therapeutic massage multiple times a day. Bottom line, it works. It's been several weeks now, and I will definitely be keeping it. I use it in the mornings, before I work out, after I work out, or any other time something feels tight or off.