When it comes to m4/3 cameras, I much prefer to use Olympus over Panasonic. Why I don't know, I just prefer using them. Certainly I find using my legacy lenses easier on the Olympus cameras. I don't use the magnify function but I can tell with the Olympus cameras when focus has been achieved, the colour seems to drain from the image. However, I prefer the ergonomics on the Panasonic G1. All the buttons are there for the right function.
I like using this lens to get close and intimate to capture detail in subjects. The following images posted here will show this. Getting close means here getting close. Sometimes it's of course not possible and I'll use a longer focal length to get the shot I want, but where I can I do.