In my opinion, unless you are growing indoors with hydro/coco, have excellent lights and a fair amount of knowledge and experience, stay away from autos.
They are made out to be simple and easy for newbies, but in reality they have rather specialized requirements and to get best results, need growers that know what they are doing.
Photoperiod plants are far more forgeving, much more reliable genetically (less mutants) and are fairly straight forward to grow.
I am an outdoor grower with close to 40 years of cultivation experience and for me, I just could not get what I would consider as worthwhile results from any auto, especially yields. They took just as long outdoors as photoperiod plants to grow and flower with yields of roughly 20% of even the worst performing photoperiod plants that were planted at the same time.
All of my older smoking friends and myself also agreed that except for one, none were satisfying potency wise. This "experiment" with the autos took place over 2 years/seasons and involved about 20 different strains from 4 of the biggest auto breeders, so it was not just one plant that did not work then forming an opinion based on just that one plant.
Nor do I believe my cultivaion methods were at fault, as I certainly am no rookie!
Even indoors after the failed outdoor results and thinking that I needed to try them under lights with extended light cycles (18 hours) and with the growing time involved, - the yields were once again disappointing in comparison to what I would have expected had I spent the same amount of time growing photoperiod plants. Having an excess of seeds, I gave some to various friends who's results and thoughts reflected my own, that is, that autos were largely a waste of time and effort. We all noticed increased genetic instability in the plants too, which made it doubly disappointing, spending a lot of effort growing plants that then hermied or had pitiful flower structure.
All the seeds were from what would be regarded as some of the biggest players in the auto market and certainly were not cheap crappy seeds from dodgy or obscure breeders.
Since then it is autos never again for me and none of my friends want any of the seeds either!
I ended up feeding them to the pigeons!
Autos will also cost you a lot, lot more electricity wise too if you want to grow indoors.
Using a fairly typical 12 week cycle as an example...........
Autos = 12 weeks at 18 hours a day of "lights on time" which = 1512 hours of lighting.
Photoperiod plants = 4 weeks at 18 hours = 504 hours of light, plus 8 weeks at 12 hours = 672 hours, for a total of 1176 hours of lighting.
Therefore, over 12 weeks you save 336 hours of "lights on time" by growing photoperiod plants over auto flowers.
336 hours is a big difference and I know which electricity bill I would prefer and who's "carbon footprint" is smaller!
The decision is yours and depends on what you are wanting to achieve.
If it is a bit of fun and you are not overly concerned with yields, autos could be for you.
If you want to invest your time and effort and be rewarded generously, photoperiod plants might be what you are looking for.
Personally, I don't think autos offer anything that can not already be achieved with photoperiod plants.
For me, I view photoperiod plants as far superior to any auto and will never waste my time and effort ever growing autos again.
There is something in that Ruderalis gene (which is responsible for the auto flowering feature), however small that part is, that just diminishes the finished quality in my opinion.
Perhaps autos are best suited to people who can not reprogram timers?
Who knows?
Hope this helps, Organoman.