My only real issues was nasal congestion. I spent the first month or two carefully irrigating and preventing congestion. Eventually the P10 was enough to hold my nose open (just like it holds the rest of the soft airway open).
Due to the excellent advice on the forums, I was able to do almost everything right. If not the first time, then very quickly when a problem cropped up.
And I did NOT roll my eyes at all....
Sleep study AHI: 49 RDI: 60 -- APAP 10-11 w/AHI: 1.5 avg for 7-days (up due likely to hip replacement recovery)
"We can all breathe together or we will all suffocate alone."