I was cautious around the purchase of a massage gun but I'm really glad I got this one. My primary use is to work out knots from weight training and Lengthy runs but my wife finds it relaxing to use in the evening. The machine is heavy to hold which isn't much of an issue as you should only use it for 30 minutes at a time. I have been using it for 4 days at 20/30 minutes a day and still have 40% battery left. The case is super smart and it will definitely come with me when we are able to travel again. The seller got this to me in one day and I was able to use it after a quick 5 minute read of the manual. Overall I'm really pleased with this purchase and I'd use this seller again without doubt.