Summary: I've spent most of the past year photographing in Iraq with an M8. I'm a long-time Leica user but I'm not a fan of the M8. It has locked up on me repeatedly and has terrible low-light capability. If you've got money to burn and are shooting in daylight, and don't mind RAW processing, this camera could be for you. If you're a working photojournalist, stay away from it.
Pros: Small, and quiet
Cons: Low light capabilities, poorly laid out controls, expensive, no fast wide angle lenses, short buffer