It's not often you come away from an unsuccessful interview feeling positive but I really appreciated the class shown by HR. I had gone through 3 rounds of interviews (screening, test, interview with founding partner) and hadn't heard back for 2 weeks. However instead of sending me a generic rejection email, HR called me directly to apologise (they'd been off sick) and to explain that although I wasn't successful they'd really appreciated my time, and actually gave me useful feedback. Made me wish I'd got the job, but appreciate how they operate.