The hiring and interview process were about as pleasant as any hiring process can be. I had one 30-minute phone interview (with two people), then a 1.5 hour in-person interview (three half-hour rounds with two people each time). It was pretty quick, too; they asked for my availability to interview in the office within a few hours after my phone interview, and I received a job offer from them two business days after my in-person. One thoughtful thing worth pointing out--the six people who interviewed me in-person had met the day before to talk about the interview, which means I didn't get asked any duplicate questions.
The recruiter was knowledgeable and helpful; she gave tips for preparing for the interviews and followed up with questions about how I found the interviews afterward.
Altogether, it was a very positive experience.