Received this as a gift almost two years ago. The intensity level works great for me I get migraines so I turn it all the way up and it helps a lot with the neck pain I have that triggers my migraines. My family has used it as well but prefers to have it at a lower level but it’s very easily adjusted to your comfort levels. You can also turn on heat which is nice along with change the pulse. There is a remote control that magnetically attaches plus built in controls on the device. The battery life I think is the most impressive it can go over a month easily without needing to be charged. I’m sure a lot of that is also dependent on the frequency of use but being able to randomly pick it up and use it when needed and it not being dead is pretty incredible. Definitely worth the cost!