Professional and friendly environment. Met people from the team and senior management.
What I really liked about the whole experience, they set the expectations and the HR folks are prompt with responses. Did not make it because though I interviewed well, they found someone whose background matched the position more.
Only negative - I met 12 people, everyone from programmers to HR manager to a VP. They could streamline process to only the candidates they want to hire.
Overall - If you are looking for work - I would definitely recommend interviewing there.