After using the F&P Simplus for about two months and my wife also using one for a slightly shorter time, I feel I have a pretty good idea of the performance of this mask.
First impressions. Mask comes completely assembled, headgear attached so there is no figuring out how things fit as you simply watch when you take it apart.
Fitting is easy starting from top down. The top straps over the head need to be adjusted first so the top straps are going parallel to the ears with as litle angle as possible.
Next the top side straps adjusted loosely. The top forehead support doesnt have too and probably wont touch you forehead when properly adjusted.
Then move to the bottom straps and adjust them. The mask is capable of fitting more loosely than a Mirage Quatro or Air or even a Fitlife.
It seals well even at pressures of 18 to 20. One thing that really stands out is that if you do need to tighten up a bit more at very high pressure the mask remains comfortable due to the softness and give of the roll fit cushion.
Noise--- other than the sound of your own breathing which you get with any mask its silent. I cannot hear the venting of my mask nor my wifes with a dead silent bedroom but for the machine. Nor her mine. Even facing each other though facing each other the high vent rate will blow air on the other person.
Ease of cleaning. Could not be easier. head gear comes off thru slots in the top and snaps on bottom so your adjustment is maintained.
Normally all the cleaning that is needed is to pop the one piece cushion out wash it, let dry and pop back in. One hint. If you do pull the grey swivel piece hold it in your hand when rinsing it. It is light and small enough to go down the drain thru the drain trap and be gone. Dont ask me how I know LOL.
Over all impression. The most comfortable quiet and effective FFM on the market. A reasonably intelligent slug can take it part and put it back together. Extremely comfortable and with a durable cushion. Good for side sleeping. Mask can take quite a bit of pushing and still hold its seal. For very high pressure as in 20 cm if need be it can be tightened to not leak remain totally comfortable. Wont be needed for most folks but I have cinched it down for purpose of doing this review and comfort is not an issue.
Once adjustment of the headgear is done its done. Headgear is very durable doesnt have the tendency to stretch and lose tension nearly as quick as other head gear ive had. Soft and comfortable. Have never had strap marks with it. Probably because it simply can be worn looser than any other FFM I have tried. If the mask has a tendency to ride up it is either the wrong size or and this is most likely the straps over the head are adjusted too tight. The side straps should go straight back not back and up like some other masks are designed to do.
Probably the highest praise it can get is that my wife tried a loaned Mirage Quatro and developed a nose sore the first night. Not a spot but a sore. It healed WHILE using the Simplus every night.
The ONLY minus and for 99 percent it wont be an issue is if you sleep in an extremely cold bedroom as in 45 degrees F or below, run a extremely high humidity and have no heated hose, this mask has a tendency to condense moisture from your own breath. I never had the problem but my wife did for two nights running a PRS1 humidity of 5 which is highest in a bedroom temp that fell into the low 40s. Dry hose but wet mask.
Above that temp range its a non issue heated hose or not.
Hope this helps someone. You know who you are you FFM searching for the right mask, little rascals you