Yep, the XP1 is indeed an awesome camera. Mine is pretty worn and beat up as it's my everyday carry.
Currently I've got a CV 25mm F4 mounted on it and shooting with it like it's a film camera... OVF only fixed ISO (usually 400), manual shutter speed and zone focussing.
Trying to train my eyes to better estimate lighting conditions so I don't waste as much film on my M2!