This is the hardest rating you can obtain. Obtaining an instrument rating is one
of the greatest challenges in aviation. But the rating also greatly expands the
utility of an airplane.
With an instrument rating, a small airplane becomes much more of a utility vehicle.
While the light piston single airplanes are not ever going to be able to blast
through weather like an airliner, they can handle conditions which would make
visual flight impossible.
If you are considering a career in aviation, the instrument rating is just about
mandatory as most commercial aviation depends upon being able to fly under all but
the worst weather conditions.
{Image shown above is the C-172 panel with Garmin 430 GPS/NAV/COM}