My biggest complaint remains the velcro on the headgear -- and even with babying it I barely got two months out of it. I'm sticking with it as I prefer the Nuances soft pillow over the one in the P10.
As for costs, replacement parts don't require a prescription and deals can be found to help.
Lovin' my CPAP since day 1! (January 2015)
If we aren't cleanin' it we're breathin' it!
"Take it as it comes, specialize in having fun"
-- Jim Morrison