Pros
Great people whom you can trust to do their job well, great opportunity in an industry that can use innovation, and strong shared sense of mission to fulfill consumer needs. I feel lucky to work with this quality of colleagues on this kind of business opportunity with this redeeming a project. One other thing -- transparency on strategy and performance to the whole company. This company is pretty unique in the degree to which everyone can know what's going on and how we're doing.
Cons
Things move fast -- you have to be comfortable living with the foot on the gas. As start-ups go, this is run as a survivable business. We're not on a forced march to IPO, leaving bodies along the path -- we have fun, people can take vacations. The people need to work long hours with some regularity, as we ship a lot of stuff, but certainly not every day. The culture is straightforward, which can feel blunt and even harsh. Personally, I appreciate a culture where everyone (at every rung of the ladder) can say what they think -- as long as they back it up with data or rationale. There is little beating around the bush, which means things get done faster. Sometimes the bluntness involves less tact than it could, but hey this is a tech company.