I bought my GF1 with the 14-45mm kit because the 20mm kit was so hard to find. The 14-45 is a nice lens but not very fast. After a few weeks I finally got the 20mm on order by itself and got it on my GF1. Since then I have also purchased the Lumix 45-200mm lens and I just have to say that I almost never use any lens except the 20mm. It is ALWAYS on my GF1, and it's perfect because the camera can fit inside my jacket pocket so I can take my GF1 everywhere.

The auto-focus is a little loud, but that is just about the only complaint I have about it. It's small, extremely fast at 1.7f, and it's a great focal length for a lot of photography.

Buy it, you won't be disappointing!