[Autos are] exactly the same other than changing a timer.
The autoflower's lack of photo sensitivity means a new grower can grow on a kitchen table, alongside vegging plants, etc. The grower can work on her plant during "lights out." She doesn't have to provide absolute darkness, nor worry about light leaks.
Also, a new grower doesn't have to obsess about when to cut the lights, etc. Flowering just happens, giving the new grower an idea about what different stages and transitions look like. The smaller size makes t5ho or cfl more appropriate (and therefore lower initial cost to grow).
I've grown both photo and auto. I find the autos more exciting.They grow/finish at a slightly faster pace which helps keep it fun. I'm considering rotating 5 plants through a 4x4 tent, planting a new plant as I harvest a plant every 2-3 weeks.
I agree that photos may be more efficient in terms of electricity savings, lifespan of lights, etc. But, the ease factor may make it worthwhile. I found the autos tolerance for light during the dark period (an auto's lack of need for a "dark period") to be extremely beneficial.