Hello,
My Newport 28 came with both a regular (symmetric) and asymmetric (with dousing sock)
spinnakers. After practicing for some time with 2-3 people, I was able to fly the assym solo.
I would do it if the wind was light and I needed to go downwind (or broad reach).
For me, the keys were a good reliable
autopilot, light wind (up to 10 kts), and the sock. With those things, it was very easy to set, fly, and douse the chute.
Personally, flying the
spinnaker is one of the great fun things of sailing. It makes being out in light wind fun instead or boring. It allows you to sail in conditions that would otherwise require the motor.
My O'day didn't come with a
spinnaker. When my budget allows, I will get one.
Barry