(5 out of 5) by Thomas S, NS, Canada

"First off, let me say that my review of this product is tuned more toward the manufacturer than the product itself. I have only had my M-Series Plus C-Flex machine for a short period of time and am honestly still getting used to it. I will say that the reviews I read on this and other sites helped me make an informed decision and at this point in time - I am completely satisfied with my new CPAP machine. I purchased the bundled product with the heated humidifier - and as someone who refused to utilize a humidifier in the past, I must say I am more than pleasantly surprised by the performance of the humidifier as it works in tandem with the M-Series Plus. When I went in for my initial diagnostic sleep study - I physically removed the humidifier from the machine provided to me by the clinic as it made me feel as if I were drowning. That study was conducted 12 years ago and up until I purchased these products, my stance had not changed on the humidifier. I use the present humidifier on a very low setting which makes it more passive - and the heated, moist air that I am breathing in is such a huge improvement over what I had become use to.

When I was initially diagnosed, I was prescribed a specific machine due to the fact that I traveled extensively - the machine was a Respironics Solo Plus LX. I was not given an option as my insurance company and Family Physician were working hand in hand on which machine they deemed most suitable. I trusted their judgment and am finding out now that their choice of the Respironics machine was truly a stroke of genius! The machine was heavy, bulky and a little bit noisy, but according to the reviews I have read on this and other sites - had more staying power than any other brand I have found on the market. My Solo Plus LX has over 35,000 hours of use on it and still to this day works as well as it did the day I purchased it back in 1998. I had to send it back to the factory for a repair one time about 7 years ago due to accidentally dropping it from a 5 foot high bunk - on to a very solid floor, but other than that it has required no maintenance. The only reason I chose to replace the machine was an as of yet unfounded paranoia about the machine breaking down at the worst possible moment. My wife and I discussed it and decided that having a "back up" machine was crucial - especially considering the fact that I had already received more than my money's worth out of the original Solo Plus LX. Imagine my surprise at how far the technology had come with regard to CPAP machines and the treatment of sleep apnea! My new M-Series Plus C-Flex CPAP machine seems almost like a work of science fiction to me. There are so many options for controlling the air flow to include adjustments for altitude and the C-Flex system itself. The auto on/off and mask alerts are both new to me as well! I purchased a Respironics battery pack to accompany my CPAP and so far have been completely satisfied with its performance and ability to hold a charge - as well as relatively fast recharging times.

I made this purchase completely out of pocket and will say that I do not consider one penny to have been wasted. I am currently working in Iraq and had the machine shipped to me here - CPAP.com somehow managed to get the package shipped to me in less than half the time it typically takes to receive parcels from the United States. The overall cost of the CPAP-Humidifier bundle; Respironics battery pack; 12V power cord and ComfortGel mask - was actually $700 less than the cost of my original machine. Times have definitely changed with regard to the treatment of Sleep Apnea.

In an attempt to summarize my opinion on the product being reviewed specifically I will state the following:

This machine is extremely lightweight - comes in a perfectly useful travel case - operates quietly and has many options that increase your ability to find a comfortable manner of sleeping - with complete regard for your personal preferences.

Based on my time invested studying the CPAP market and my recent purchase, I would recommend the M-Series Plus and Respironics in general to any consumer in need of a quality product that is durable and one that does not skimp on features that are crucial to a productive night's sleep."

(5 out of 5) by Marye T, FREDERICKSBRG, TX

"size is great for home or travel...works well and very quiet....I'm very happy I paid for this machine even if my insurance would not...."

(4 out of 5) by Terry S, Omaha, NE

"Machine works very well, somewhat louder than previous remstar machine, probably due to C-flex feature. Love the smaller size compared to Remstar. Just started using the machine but seem to feel much better in the morning with the C-flex function."