Centaurus
I doubt if most VFR pilots not using autopilot hold mode can fly within plus or minus 200 feet of their planned altitude.
WHAT!!
I don't have an altitude hold as part of my autopilot. Yet in the last 365 Days I have flown around 400 Hrs VFR, all within about 20-30 ft error.
VFR is a type of flight rules, not a type of pilot