I just received my JMAS1000 a couple of days ago. It does the job as a vibrating type massage. The attachments are nice to have because it allows you to use the machine on different muscles depending on what you need. It doesn't do a "thumping" type massage as some of the other massage machines do though, just a vibration. My only complaint is that the 1 and 2 settings on it could have been 2 and 3 and they could have done with one slightly lower setting. The infrared is kind of just there and I feel like it works, but ultimately I am unsure if it is helping or not. Its fairly lightweight compared to others and seems well built.Works well but given the price, it only will seem worth it if it the machine is durable enough to last a long time.