Pros
Trulia provides a great work/life balance which management supports. The culture is nothing short of fun and everyone works to maintain this from the ping pong tables and kegs to the monthly first Friday happy hours and quarterly "Mind, Body, Spirit" Days where the day is spent eating healthy foods, working out, getting massages, etc. The President is a down to earth, friendly guy, who is happy to chat with any employee. The management makes a point to be transparent with employees and keep everyone in the office in the loop about changes.
Cons
If something is ever wrong management is happy to listen to employees and actually make changes which is a nice change from other offices I've worked in