For me the ifly still overshoots every turn at high altitude and strong winds. Never had this issue with pmdg.
I would love a pmdg max. I tried to like the ifly but it’s still giving me issues. During long transcontinental flight with wind changes, it quiet often can’t hold speed for some time and needs to accelerate back to cruise speed. As mentioned the lnav has gotten better, but still overshoots quiet often. And lastly the efb is atrocious.
To bad, because it looks and sounds amazing. It hand flies beautifully.