They appear OK, the only plane I have tried so far is the Just Flight Piper Arrow III. A message box appears warning me that VR controller support is not fully functional with this plane . Fair enough
The only thing that does seem to work is toggling the static items in the EFB.
By default it assigns the thumbsticks to flight controls. Quit cool trying to land using the controller thumbsticks. Love the way the “help” topic windows appear smack bang in front of you on short-final and you end up having to lean to one side to look around it ! 
I have since disabled them as they were clashing with my other controls.
Haven’t poked around with the settings at all . The plane feels “different” but not sure if some of the difficulty settings have been changed now that all the “hand holding” options are turned on.