Autopilot questions for small GA aircraft

Some questions on autopilots for pilots of small GA aircraft:

1. Do you have an autopilot in your aircraft? If so, how many axes/modes?

2. Which modes do you find yourself using most often, and in what conditions?

3. Do you use your autopilot differently between VFR and IFR flight? If so,
what do you do differently?

4. How much do you trust your autopilot? Have you experienced failures? Were
they inconveniences or did they impact safety?

5. Do you find that autopilots add safety or merely add convenience?

6. Excluding situations in which autopilot is required (autolands, RVSM,
etc.), are there situations in which you prefer not to fly without an
autopilot?

Other comments welcome as well, of course.

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