I did not purchase the Resperate device 10 years ago because I was being cheap. I wish I had purchased it sooner. The cost of doctor visits, ER vists, and potential damage to my health was not worth it. Purchased 70 days ago and I am very happy with the device and results. Todays BP reading was 111/75. Simple to use. It took about 3 weeks to start seeing a change. Look at the negative feedbacks and you can see they did not follow the directions or use common sense. Every night I put it on, pick up a book I am reading and sit back and relax. May be for 20 minutes and some times longer if I have the time read I have time to Resperate.