I have yet to try any autos myself, but have had friends run Autos from some less than reputable sources, and they were all over the place. Some werent even autos, some herms, some clearly not at all like the cultivar they were described, etc.
That said, I've had my eye on a few of Mephisto/NightOwl Autos. Ive heard from a few people I respect say that their work is bar-none when it comes to Autoflowers
Definitely seems like the potential is there if someone can produce Auto seeds that are reliably 100% Autos, and can come close in potency and terps to Traditional varieties. We'd have grandparents all over throwing some Autos in the Tomato garden every spring