Very accommodating on scheduling, 2/4 interviews were by phone. For the in person interviews they were willing to work around my scheduling constraints. Instant feedback was provided at each of the interviews so that I knew exactly where I stood in the interview process. The only downside was that I didn't know up front that there would be 4 interviews.

I had an initial phone interview with HR and then a week later had an in person interview with the hiring manager and her boss. Both were very laid back and made me feel comfortable.