anyone use the Fisher & Paykel Full face?

Does it prevent leaks?

I am interested in trying the Fisher & Paykel new Oracle 452 system. I cannot breath through my nose when I sleep and am Rescue Diver so I am used to breathing off something in my mouth. Does it work well? The full face masks I have used are so obtrusive and they leak. Are they hard to get used to? ...

thanks for the reply.

Yes I move around a lot while sleeping. I have Restless Legs aslo and can only breathe through my mouth. I have heard great things about the ResMed.