Pros
I had a lot of freedom, got some pretty great experience here, dropping into the very deep end of the pool of information technology. I had previously had zero job experience in technical support or any kind of development, and wound up doing extensive support for a wide variety of things, and acting as lead / sole developer for one project.
Cons
I got to take on any project I liked - because the company was totally disorganized. During the six months that I worked here, I created most of the documentation the company currently uses (to my knowledge). Here's a tip, kids: if someone's trying to hire you to pick up a project built by another developer, and you ask him, "So, what version control are you using?" and he goes "What's that?" and he's been the lead developer and CEO of the company for ~20 years and is currently the only developer involved, that's your cue to RUN LIKE HELL. I sure wish I had. Also, the organization is so small and relies so heavily on burning through temporary workers that there is no opportunity for advancement and extremely high turnover.