We are glad that the provider of respironics PR System one has gave us a product demo that was not too technical or too complicated. Instead, it was presented to us as if we were first time users of CPAP machines. We have searched over the internet for various CPAP machines and since we found the cheapest device at the website called CPAP discounts, it was a bonus that we were shown what we needed to know before we paid for the device. We even tried it and have noticed the difference of the technology of this machine. It’s very quiet, sophisticated, and easy to use. I have also seen the documented testimonials of satisfied customers recommending Respironics PR system one to other people. Personally speaking, my new machine will add “glamour” to my room because I find it really nice and beautiful. But more than that, I am assured that I can now sleep better because of the machine.