Pros
The people are great and I got along with almost everyone. Work was enjoyable and fairly stress free comparing to other places I worked at. I really appreciate the fact that I was given the opportunity to work on various parts of the code base. The way Addepar approaches financial software is very different from the other financial software companies. The concept of the financial graph and transaction effects still impresses me up to this day. As a whole I grew a lot as a programmer and had many fond memories of hanging out at the office late at night, the hackathons, the mid night barbecue, Hearst Castle, the retreats at Lake Tahoe etc...
Cons
Some engineers have a huge ego and lack optimism. It bothers me when people bring negativity to the office. There are already plenty of ups and downs working in a start up and pessimism doesn't solve any problem. Anyways, I think those days are behind us now. The team restructuring and management shift in the last year was a little hard. Hopefully this doesn't happen too often.