This is an often disputed topic. I've heard that reasoning many times, and it has its merits. There are a few simple rules to follow for autos, and they are practically worry-free.
- Pick a strain that is hardy, and resistent to mold and fungus.
- Feed nutrients to a schedule recommended by the the nutrient manufacturer.
- Provide a well-ventilated growing space with as close to a 60/60 balance as you can get (regarding temperature and relative humidity).
- Don't over-water. Pick up the pot - if it feels light, then water and/or feed.
The reason I recommend autos is the fast reward. First time growers tend to want to rush things anyway. Just my two-cents, but Billy the Mountain and Conner C both have valid arguments for photo periods.