Great video on Sleepyhead. It's fun to compare ResMed's software video and with Sleepyheads' and study how different programs display the results and allow the user to manipulate the data. Such a lot of creativity, somewhat confusing to a beginner, but these videos are a BIG help in getting one's head around it all.
I like my ResMed AirFit F10 FFM - reasonably low leaks for my ASV therapy. I'm currently using a PR S1 AutoSV 960P Advanced. I also keep a ResMed S9 Adapt as backup. I use a heated Hibernite hose. Still rockin' with Win 7 by using GWX to stop Win 10.