This unit was a huge upgrade to the cupping machines that I have used in the past both manual and motorized. We first learned about cupping from our massage therapist who has since changed professions. I like that this machine pulsates the air pressure, this provides a nice massage for shoulder and neck pain. I am just learning about the other benefits such as breast enhancement, slimming and facial treatments but this machine can do them all. Although it said butt lift in the description, the cups were not included for this and you will need to purchase them separately. It comes with two hoses, if only using one cup you will need to knot the other hose. You can only use.two cups at a time. The machine is easy to use and change between treatment options. We had to use trail and error as the instructions were not super helpful. We primarily use Body Rythmn 1 & 2 for pain treatments. Although there is some bruising of the skin this seems to be less noticeable than other units. Overall we really like the machine and it seems help with pain management and inflammation! If I could change anything it would be the ability to use more than two cups at the same time.