My "new" boss started back today after being on maternity leave. She had already left by the time I joined, so today is the first day I've worked with her. I didn't even meet her at the interviews. So far, she seems smart, friendly and willing to listen.
It was a gamble taking a job when I hadn't met the boss, but I generally get on with most people. She had chatted with her boss, who interviewed me, read my personality profile, and thought I would fit the team. As she said, people can learn technology, but they can't learn personality.