I am real close to buying this unit (the Ds550) and keep hearing about the "brick" as a negative for travel. I want to use this as a traveling CPAP or APAP machine. Can someone tell me how big is this brick and how much does it weigh?

I am wanting to buy an Intellipap Auto Adjusts APAP machine because of the size for travel convenience and for low noise ratings. I currently use a Respironics with C-Flex. After using a regular CPAP for years, going to the C-Flex was like night and day for me; it was really great. I see the Intelli...