I have a GF1 – great camera.
I bought it because I wamted good image quality without too much bulk, along with fast focusing and control of shutter speed/aperture etc.
I’ve learned a lot with that camera, evne more so once I properly learned post-processing of RAWs.
I’ve had it for a good few years now – I’m thinking of replacing it with a GM1 once they come down in price. The GF1 is still sometimes too big to carry easily (even with a pancake lens – I have the 20mm) and it has an older sensor that doesn’t go to too high an ISO without getting noisy – bit of a bummer for non-flash photos in a pub or whatever.
GM1 should hit the spot there – it’s tiny and has the newest sensor.
The 20/1.7 lens is great and I have a Samyang fisheye too.