IMO outdoors is the best application for autos. Unless you have a veg room that you want to make the most out of. Other than that, I don't understand why ppl grow autos indoors when you can just flip to 12/12 after 3-4 week with a photoperiod strain.
Nothing beats having fresh bud in June while everything else is still in veg. They need tons of sun and a good start indoors or else the yields will be disappointing. I've done several auto crops outdoors over the past couple years and have been satisfied every time.