The macro converter is an inexpensive part for people who would like to take a close-up of a smaller object now and then. For (semi-) professional recordings, it is less suitable. But one can buy a "real" macro. And the most stable impression makes it either, but then sits still at 14-42 II and 40-150mm.
However, I have therefore already made a few nice shots with my PL3 PEN. It is absolutely OK from the price-performance ratio ago.