Does anyone use the Fisher & Paykel sleep style? It’s not working for me at all.

It’s been six months. I’m compliant. My AHI is down to 4/hr. I’m getting no relief from my symptoms at all. I’m using nasal masks. I’m desperate for sleep!!! Has anybody else failed to comply with this machine? How do I get more data from the F&P? What could be wrong if my compliance is good?