Pros
MemSQL has tremendous potential both in the product and team. I truly feel like I work with the some of the brightest people in San Francisco. Team - Easy to work with. Engineers are top tier. Leadership - Most of the leadership has just started, so it's hard to give an adequate review at this point in time. Managers are looking to hire people that are highly skilled and encourage autonomy. Environment - Office is comfortable with a warm atmosphere. Lunch and dinner is catered. There are dogs, games and other typical startup perks. Personal equipment and workspace is also top notch.
Cons
There's not much to say about cons at this point in time. The company is still young and lacks a formal review process and feedback for employees. For some, that could be viewed as a con.