FANTASTIC. Ordered on a weekend they rang me on Monday and I received it on the Wednesday. I love the machine, and the woman I spoke was lovely, and the super fast delivery was very much appreciated and the price was really good. My previous machine died on me so I had a few nights with no machine. This one is extremely quiet with great easy to follow instructions and the SD card has it's own software so I don't have to download another program to get my information as I had to with my old machine. I highly recommend this CPAP machine. Thank you so much CPAPSales.