Haven't taken enough photos with my 60 yet to be sure how good t is for macro and so not convinced it will be better than the PanyLeica 45, a lens I have had some very good results from.
In the film days OlyZuiko macro lenses were the best range out there, right down to microscope-mount lenses which had to be used on bellows and were really challenging to use (no good for moving objects), but could give great results (if everything went well). Trouble was, in those film days, you had to wait a while to find out if your photos were great, or duds.
I must try and find time to try this old setup out with mft attached.