Avantages
If you're looking for a place to learn, this is it. If you want to work for a company where you really make a difference, this is it. Be willing to work your ass off -- you're not going to have time to surf Facebook or Youtube all day: this is a real job. There is no sitting in a corner and doing those few things that get assigned to you. If you want to be "just an employee" go somewhere else. You will be challenged and stressed but when you are done, you will have a sense of accomplishment.
Inconvénients
CEO is a great guy, decent human being. However he struggles with interpersonal skills. He can be very demanding and curt - coming off as rude. But then he can turn around and be very generous. He also does not seem to pick up on normal social cues. Below-average wages. The CEO gave us a book for required reading -- I wish he would read this part again: "If I hire an employee at below-market rate, market forces dictate that I'm not going to keep that person forever, and replacement will be more costly in the long run than hiring that employee at the market rate. A high turnover rate is very, very expensive. It also makes it hard to create consistency in the workplace, which can lower productivity, service quality, and customer satisfaction (this is also expensive)."