I flew with the LX Nav S80 today.
I did loops and barrel rolls. The instrument tracked perfectly.
I then started loops and barrel rolls with the display on a different screen and turned the artificial horizon display on in the middle of the maneuver. The instrument was tracking the aircraft just fine.

Then I entered a series of spins with the display on a different screen and brought up the artificial horizon screen in the middle of a developed spin and it came up perfectly allowing me to use the instrument to correctly position the aircraft. The slip/skid indicator correctly showed a crossed control situation.

Since I fly with the vario on all the time. The instrument is always on and ready.

Finally! A complete flight instrument suite in one package.