I had 5 interviews: 3 developers from the team I was interviewing with, the team lead, and one from HR.

I think the process was spot on; I got to know the people from the team I was interviewing for (the developers, and not just the team lead like in other places), and they got to know me (personally and professionally).

The person who interviewed me from HR was very professional and did an excellent job. I was especially pleased with her explanation to me about the company culture, and that she wanted me to make sure that I'm aware and OK with the culture. I think this is extremely important for the interviewee to know about this, since culture fit is a two-way street.

The questions were also fair. They didn't ask riddles or some silly not-important topics, but asked practical, day-to-day programming and architecture questions. This made the interviews more real and closer to what you actually deal with day-to-day.

The most important thing I got was full feedback during all interviews. They were completely open and honest to me about what they thought of me during the interviews, which is something I unfortunately didn't see in any other place (which they keep you in limbo for one-two weeks, and then if not accepted they just send out a generic rejection letter).

How would you implement a chat room in the browser?