Recently I purchased the TimTam Power Massager V1.5. I thought I would give a review of it since foam rolling, massage, soreness, and muscle aches are a major part of martial arts. To summarize what it does, the ball retracts and pushes forward at a rapid rate. This is not your drug store class massage tool. It hits you hard enough that it pulls on body hair, but because of that it also can get extremely deep into the muscle for an effective massage. I purchased the item due to chronic tension issues that cause poor posture and because I'm setting out to work out again to get in good enough shape to maybe start doing some BJJ again. I have chronic neck/shoulder issues that occur from tensing up my neck, shoulders, and back due to anxiety I experience from PTSD. Unfortunately for me this is my body's reactionary defense mechanism to the anxiety, and it is a continuous battle to maintain correct posture and work the muscles out correctly when they get really bad. The tension can be bad enough to cause debilitating tension headaches that last for days, and if it's really bad can cause migraines that last a few days as well. One of the major issues that are a signal for the tension being bad is a reduction in mobility of my head. It becomes hard to look left or right. Recently, augmented by sleeping in a terrible position a few nights ago, I have been unable to look to my right and have had to implement physical therapy techniques I've learned as well as hitting tension points with a knobbed massage device (non moving). It has been progressively getting better. I have used the TimTam twice on my neck and back without the assistance of another person and after using it I pretty much gain full mobility for a short time after use. Devices like this don't fix the underlying issue, but they can be effective in creating enough mobility that you can address the issue more thoroughly which transfers into healing faster. This device is definitely one of the ones that can assist effectively. I have not yet used the device for recovery from working out, although I'm pretty familiar with techniques to help muscle soreness recovery and how massage devices can help and I'm confident this device will hit the mark in contributing massively towards recovery. It also just feels dang good being used to massage when you're not even sore! The price is a bit hefty, coming in at $400.00 but it's significantly cheaper than its competitors. Anywho, just thought I would throw this out there for anyone interested along with a review of it being effective. If anyone has used a device like this, would be interested in hearing your experience as well.